{"product_id":"eos-power-extension-box","title":"EOS Power Extension Box for Multi-Heater Sauna Systems","description":"\u003c!-- =========================================================\nMLHS | EOS POWER EXTENSION BOX\nSECTION 1 OF 4\n\nPRODUCT TITLE:\nEOS Power Extension Box for Multi-Heater Sauna Systems\n\nURL HANDLE:\neos-power-extension-box\n\nSEO TITLE:\nEOS Power Extension Box | Multi-Heater Sauna Systems\n\nMETA DESCRIPTION:\nExpand an EOS multi-heater sauna system with additional relay capacity.\nChoose Small, Medium, Large, L-XL, or X-Large. Power Box required.\n\nSHOPIFY OPTION:\nSize\n\nVARIANTS:\nSmall - PEB NA 1 Small - Item 949279\nMedium - PEB NA 2 Small - Item 949280\nLarge - PEB NA 3 - Item 949281\nL-XL - PEB NA 4 - Item 949282\nX-Large - PEB NA 5 - Item 949283\n\nShopify should generate the product title as the H1.\nFAQ JSON-LD will be added in Section 4.\nNo Product or Offer schema.\n========================================================= --\u003e\n\n\u003cstyle\u003e\n .mlhs-product {\n --mlhs-text: #26323a;\n --mlhs-heading: #131d23;\n --mlhs-line: #dfe5e8;\n --mlhs-soft: #f5f8f9;\n --mlhs-warm: #f8f2ed;\n --mlhs-accent: #9b5e35;\n --mlhs-accent-dark: #754326;\n --mlhs-dark: #172229;\n --mlhs-white: #ffffff;\n --mlhs-danger: #943c35;\n --mlhs-success: #315f4f;\n --mlhs-radius: 18px;\n --mlhs-shadow: 0 12px 32px rgba(19, 29, 35, 0.07);\n\n max-width: 1180px;\n margin: 0 auto;\n padding: 8px 16px 48px;\n color: var(--mlhs-text);\n font-size: 16px;\n line-height: 1.7;\n }\n\n .mlhs-product,\n .mlhs-product * {\n box-sizing: border-box;\n }\n\n .mlhs-product h2,\n .mlhs-product h3 {\n margin-top: 0;\n color: var(--mlhs-heading);\n line-height: 1.25;\n }\n\n .mlhs-product h2 {\n margin-bottom: 16px;\n font-size: clamp(25px, 3.3vw, 38px);\n }\n\n .mlhs-product h3 {\n margin-bottom: 10px;\n font-size: clamp(19px, 2vw, 23px);\n }\n\n .mlhs-product p {\n margin-top: 0;\n margin-bottom: 16px;\n }\n\n .mlhs-product a {\n color: var(--mlhs-accent-dark);\n }\n\n .mlhs-product strong {\n color: var(--mlhs-heading);\n }\n\n .mlhs-product__eyebrow {\n display: inline-block;\n margin-bottom: 11px;\n color: var(--mlhs-accent-dark);\n font-size: 13px;\n font-weight: 800;\n letter-spacing: 0.09em;\n line-height: 1.35;\n text-transform: uppercase;\n }\n\n .mlhs-product__hero {\n margin: 8px 0 30px;\n padding: clamp(26px, 5vw, 52px);\n border: 1px solid var(--mlhs-line);\n border-radius: 24px;\n background:\n radial-gradient(\n circle at top right,\n rgba(155, 94, 53, 0.12),\n transparent 38%\n ),\n linear-gradient(\n 120deg,\n rgba(255, 255, 255, 0.99),\n rgba(248, 242, 237, 0.96)\n );\n box-shadow: var(--mlhs-shadow);\n }\n\n .mlhs-product__hero-inner {\n max-width: 930px;\n }\n\n .mlhs-product__lead {\n max-width: 870px;\n margin-bottom: 20px;\n color: #3d4a52;\n font-size: clamp(17px, 2vw, 20px);\n line-height: 1.65;\n }\n\n .mlhs-product__badges {\n display: flex;\n flex-wrap: wrap;\n gap: 10px;\n margin-top: 22px;\n }\n\n .mlhs-product__badge {\n display: inline-flex;\n align-items: center;\n min-height: 38px;\n padding: 8px 13px;\n border: 1px solid #dfd3ca;\n border-radius: 999px;\n background: rgba(255, 255,255, 0.84);\n color: var(--mlhs-heading);\n font-size: 14px;\n font-weight: 750;\n }\n\n .mlhs-product__section {\n margin-top: 48px;\n }\n\n .mlhs-product__section-intro {\n max-width: 920px;\n margin-bottom: 24px;\n }\n\n .mlhs-product__grid {\n display: grid;\n grid-template-columns: repeat(2, minmax(0, 1fr));\n gap: 18px;\n }\n\n .mlhs-product__grid--three {\n grid-template-columns: repeat(3, minmax(0, 1fr));\n }\n\n .mlhs-product__card {\n height: 100%;\n padding: 24px;\n border: 1px solid var(--mlhs-line);\n border-radius: var(--mlhs-radius);\n background: var(--mlhs-white);\n box-shadow: 0 8px 24px rgba(19, 29, 35, 0.045);\n }\n\n .mlhs-product__card p:last-child,\n .mlhs-product__card ul:last-child {\n margin-bottom: 0;\n }\n\n .mlhs-product__icon {\n display: flex;\n align-items: center;\n justify-content: center;\n width: 112px;\n min-height: 48px;\n margin-bottom: 16px;\n padding: 7px;\n border-radius: 13px;\n background: var(--mlhs-warm);\n color: var(--mlhs-accent-dark);\n font-size: 12px;\n font-weight: 800;\n line-height: 1.2;\n text-align: center;\n }\n\n .mlhs-product__list {\n margin: 12px 0 0;\n padding-left: 21px;\n }\n\n .mlhs-product__list li {\n margin-bottom: 8px;\n }\n\n .mlhs-product__list li:last-child {\n margin-bottom: 0;\n }\n\n .mlhs-product__summary {\n display: grid;\n grid-template-columns: minmax(0, 1.03fr) minmax(300px, 0.97fr);\n gap: 28px;\n align-items: center;\n padding: clamp(26px, 4vw, 42px);\n border-radius: 22px;\n background: var(--mlhs-dark);\n color: #e9eff1;\n }\n\n .mlhs-product__summary h2,\n .mlhs-product__summary h3,\n .mlhs-product__summary strong {\n color: #ffffff;\n }\n\n .mlhs-product__summary p {\n color: #d9e2e5;\n }\n\n .mlhs-product__summary-box {\n padding: 24px;\n border: 1px solid rgba(255, 255, 255, 0.14);\n border-radius: var(--mlhs-radius);\n background: rgba(255, 255, 255, 0.06);\n }\n\n .mlhs-product__summary-box dl {\n display: grid;\n grid-template-columns: minmax(135px, 0.8fr) minmax(0, 1.2fr);\n gap: 10px 18px;\n margin: 0;\n }\n\n .mlhs-product__summary-box dt {\n color: #ffffff;\n font-weight: 800;\n }\n\n .mlhs-product__summary-box dd {\n margin: 0;\n color: #dce4e7;\n }\n\n .mlhs-product__compatibility {\n padding: clamp(26px, 4vw, 40px);\n border: 1px solid #ddd2c9;\n border-radius: 22px;\n background: var(--mlhs-warm);\n }\n\n .mlhs-product__compatibility-grid {\n display: grid;\n grid-template-columns: repeat(2, minmax(0, 1fr));\n gap: 18px;\n margin-top: 22px;\n }\n\n .mlhs-product__compatibility-item {\n padding: 20px;\n border: 1px solid #e2d7ce;\n border-radius: 15px;\n background: rgba(255, 255, 255, 0.78);\n }\n\n .mlhs-product__important {\n padding: clamp(26px, 4vw, 40px);\n border: 2px solid #d7aaa5;\n border-radius: 22px;\n background: #fff5f3;\n }\n\n .mlhs-product__important h2,\n .mlhs-product__important h3 {\n color: #6f2824;\n }\n\n .mlhs-product__important .mlhs-product__eyebrow {\n color: #8b332e;\n }\n\n .mlhs-product__table-wrap {\n overflow-x: auto;\n border: 1px solid var(--mlhs-line);\n border-radius: var(--mlhs-radius);\n background: var(--mlhs-white);\n }\n\n .mlhs-product__table {\n width: 100%;\n min-width: 720px;\n border-collapse: collapse;\n }\n\n .mlhs-product__table th,\n .mlhs-product__table td {\n padding: 15px 18px;\n border-bottom: 1px solid var(--mlhs-line);\n text-align: left;\n vertical-align: top;\n }\n\n .mlhs-product__table th {\n width: 32%;\n background: var(--mlhs-soft);\n color: var(--mlhs-heading);\n font-weight: 800;\n }\n\n .mlhs-product__table thead th {\n width: auto;\n }\n\n .mlhs-product__table tr:last-child th,\n .mlhs-product__table tr:last-child td {\n border-bottom: 0;\n }\n\n .mlhs-product__notice {\n margin-top: 24px;\n padding: 19px 21px;\n border-left: 4px solid var(--mlhs-accent);\n border-radius: 0 13px 13px 0;\n background: var(--mlhs-warm);\n }\n\n .mlhs-product__notice--important {\n border-left-color: var(--mlhs-danger);\n background: #fff4f2;\n }\n\n .mlhs-product__notice--success {\n border-left-color: var(--mlhs-success);\n background: #f0f8f4;\n }\n\n .mlhs-product__notice p:last-child {\n margin-bottom: 0;\n }\n\n .mlhs-product__document {\n display: flex;\n align-items: center;\n justify-content: space-between;\n gap: 18px;\n padding: 21px;\n border: 1px solid var(--mlhs-line);\n border-radius: 15px;\n background: var(--mlhs-white);\n }\n\n .mlhs-product__document-copy p:last-child {\n margin-bottom: 0;\n }\n\n .mlhs-product__document-link {\n display: inline-flex;\n flex: 0 0 auto;\n align-items: center;\n justify-content: center;\n min-height: 46px;\n padding: 11px 18px;\n border: 2px solid var(--mlhs-accent-dark);\n border-radius: 10px;\n background: var(--mlhs-accent-dark);\n color: #ffffff !important;\n font-weight: 800;\n line-height: 1.2;\n text-decoration: none !important;\n }\n\n .mlhs-product__product-link {\n display: block;\n margin-top: 10px;\n padding: 12px 14px;\n border: 1px solid var(--mlhs-line);\n border-radius: 10px;\n background: var(--mlhs-soft);\n font-weight: 800;\n line-height: 1.4;\n text-decoration: none;\n }\n\n .mlhs-product__product-link:hover {\n border-color: var(--mlhs-accent);\n background: #ffffff;\n }\n\n .mlhs-product__steps {\n counter-reset: mlhs-step;\n display: grid;\n grid-template-columns: repeat(3, minmax(0, 1fr));\n gap: 18px;\n }\n\n .mlhs-product__step {\n position: relative;\n min-height: 100%;\n padding: 64px 23px 23px;\n border: 1px solid var(--mlhs-line);\n border-radius: var(--mlhs-radius);\n background: var(--mlhs-soft);\n }\n\n .mlhs-product__step::before {\n counter-increment: mlhs-step;\n content: counter(mlhs-step);\n position: absolute;\n top: 20px;\n left: 23px;\n display: flex;\n align-items: center;\n justify-content: center;\n width: 31px;\n height: 31px;\n border-radius: 50%;\n background: var(--mlhs-accent);\n color: #ffffff;\n font-size: 14px;\n font-weight: 800;\n }\n\n .mlhs-product__faq {\n border-top: 1px solid var(--mlhs-line);\n }\n\n .mlhs-product__faq details {\n border-bottom: 1px solid var(--mlhs-line);\n }\n\n .mlhs-product__faq summary {\n position: relative;\n padding: 20px 42px 20px 0;\n color: var(--mlhs-heading);\n font-weight: 800;\n cursor: pointer;\n list-style: none;\n }\n\n .mlhs-product__faq summary::-webkit-details-marker {\n display: none;\n }\n\n .mlhs-product__faq summary::after {\n content: \"+\";\n position: absolute;\n top: 17px;\n right: 4px;\n color: var(--mlhs-accent-dark);\n font-size: 25px;\n line-height: 1;\n }\n\n .mlhs-product__faq details[open] summary::after {\n content: \"-\";\n }\n\n .mlhs-product__faq-answer {\n max-width: 920px;\n padding: 0 42px 20px 0;\n }\n\n .mlhs-product__cta {\n margin-top: 48px;\n padding: clamp(28px, 5vw, 48px);\n border-radius: 22px;\n background: var(--mlhs-warm);\n text-align: center;\n }\n\n .mlhs-product__cta-inner {\n max-width: 800px;\n margin: 0 auto;\n }\n\n .mlhs-product__buttons {\n display: flex;\n flex-wrap: wrap;\n justify-content: center;\n gap: 12px;\n margin-top: 22px;\n }\n\n .mlhs-product__button {\n display: inline-flex;\n align-items: center;\n justify-content: center;\n min-height: 48px;\n padding: 12px 21px;\n border: 2px solid var(--mlhs-accent-dark);\n border-radius: 10px;\n font-weight: 800;\n line-height: 1.2;\n text-decoration: none !important;\n }\n\n .mlhs-product__button--primary {\n background: var(--mlhs-accent-dark);\n color: #ffffff !important;\n }\n\n .mlhs-product__button--secondary {\n background: transparent;\n color: var(--mlhs-accent-dark) !important;\n }\n\n @media (max-width: 900px) {\n .mlhs-product__grid--three,\n .mlhs-product__steps {\n grid-template-columns: 1fr;\n }\n\n .mlhs-product__summary {\n grid-template-columns: 1fr;\n }\n }\n\n @media (max-width: 700px) {\n .mlhs-product {\n padding-right: 12px;\n padding-left: 12px;\n }\n\n .mlhs-product__grid,\n .mlhs-product__compatibility-grid {\n grid-template-columns: 1fr;\n }\n\n .mlhs-product__summary-box dl {\n grid-template-columns: 1fr;\n gap: 2px;\n }\n\n .mlhs-product__summary-box dd {\n margin-bottom: 10px;\n }\n\n .mlhs-product__document {\n align-items: flex-start;\n flex-direction: column;\n }\n\n .mlhs-product__document-link {\n width: 100%;\n }\n\n .mlhs-product__buttons {\n flex-direction: column;\n }\n\n .mlhs-product__button {\n width: 100%;\n }\n }\n\u003c\/style\u003e\n\n\u003cdiv class=\"mlhs-product\"\u003e\n\n \u003csection class=\"mlhs-product__hero\" aria-labelledby=\"eos-power-extension-box-intro\"\u003e\n \u003cdiv class=\"mlhs-product__hero-inner\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Additional Relay Capacity for EOS Multi-Heater Systems\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-power-extension-box-intro\"\u003e\n Expand a Compatible EOS Control System to Operate Multiple Sauna Heaters\n \u003c\/h2\u003e\n\n \u003cp class=\"mlhs-product__lead\"\u003e\n The EOS Power Extension Box adds the relay capacity required when an\n EOS sauna installation includes more heaters than the primary\n multi-heater Power Box can control by itself.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Available in five configurations, the Power Extension Box works with\n compatible EOS Touch 3 and EmoTec D control systems. Select Small,\n Medium, Large, L-XL, or X-Large according to the number of additional\n relay boards required by the complete heater and electrical design.\n \u003c\/p\u003e\n\n \u003cdiv class=\"mlhs-product__badges\" aria-label=\"EOS Power Extension Box highlights\"\u003e\n \u003cspan class=\"mlhs-product__badge\"\u003eFive size options\u003c\/span\u003e\n \u003cspan class=\"mlhs-product__badge\"\u003eMulti-heater systems only\u003c\/span\u003e\n \u003cspan class=\"mlhs-product__badge\"\u003eAdds relay capacity\u003c\/span\u003e\n \u003cspan class=\"mlhs-product__badge\"\u003eTouch 3 compatible\u003c\/span\u003e\n \u003cspan class=\"mlhs-product__badge\"\u003eEmoTec D compatible\u003c\/span\u003e\n \u003cspan class=\"mlhs-product__badge\"\u003ePower Box required\u003c\/span\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-power-extension-box-overview\"\u003e\n \u003cdiv class=\"mlhs-product__summary\"\u003e\n \u003cdiv\u003e\n \u003cspan class=\"mlhs-product__eyebrow\" style=\"color:#e6b58f;\"\u003e\n Product Overview\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-power-extension-box-overview\"\u003e\n Purpose-Built Expansion for Large Multi-Heater Sauna Installations\n \u003c\/h2\u003e\n\n \u003cp\u003e\n The EOS Power Extension Box, also called the PEB NA, is a power\n switching expansion component for sauna systems that operate several\n electric heaters from one compatible EOS control platform.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Each additional relay board supports another heater circuit within\n the approved system design. The available variants provide one,\n two, three, or four additional relay boards. The largest PEB NA 5\n configuration includes four relay boards plus a separate Power Box\n that allows the system to expand beyond six total relay boards.\n \u003c\/p\u003e\n\n \u003cp\u003e\n The Power Extension Box is not required for a standard single-heater\n sauna and cannot be used as a stand-alone control or as a substitute\n for the primary EOS multi-heater Power Box.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__summary-box\" aria-label=\"EOS Power Extension Box product summary\"\u003e\n \u003cdl\u003e\n \u003cdt\u003eBrand\u003c\/dt\u003e\n \u003cdd\u003eEOS\u003c\/dd\u003e\n\n \u003cdt\u003eModel\u003c\/dt\u003e\n \u003cdd\u003ePEB NA Power Extension Box\u003c\/dd\u003e\n\n \u003cdt\u003eProduct type\u003c\/dt\u003e\n \u003cdd\u003ePower switching and relay expansion unit\u003c\/dd\u003e\n\n \u003cdt\u003eApplication\u003c\/dt\u003e\n \u003cdd\u003eMulti-heater sauna systems\u003c\/dd\u003e\n\n \u003cdt\u003eControl compatibility\u003c\/dt\u003e\n \u003cdd\u003eEOS Touch 3 and EmoTec D\u003c\/dd\u003e\n\n \u003cdt\u003eRequired Power Box\u003c\/dt\u003e\n \u003cdd\u003eEOS multi-heater Power Box\u003c\/dd\u003e\n\n \u003cdt\u003eAvailable sizes\u003c\/dt\u003e\n \u003cdd\u003eSmall, Medium, Large, L-XL, X-Large\u003c\/dd\u003e\n\n \u003cdt\u003eMaximum system\u003c\/dt\u003e\n \u003cdd\u003eUp to 12 relay boards\u003c\/dd\u003e\n \u003c\/dl\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-power-extension-box-features\"\u003e\n \u003cdiv class=\"mlhs-product__section-intro\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003eKey Features\u003c\/span\u003e\n\n \u003ch2 id=\"eos-power-extension-box-features\"\u003e\n Flexible Relay Expansion for Complex Sauna Heating Systems\n \u003c\/h2\u003e\n\n \u003cp\u003e\n The five available configurations allow a qualified system designer to\n match the extension equipment to the exact number of heater circuits\n required.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__grid mlhs-product__grid--three\"\u003e\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n MULTI-HEATER\n \u003c\/div\u003e\n\n \u003ch3\u003eBuilt for Multiple Heaters\u003c\/h3\u003e\n\n \u003cp\u003e\n Provides additional switching capacity when several sauna heaters\n must operate through one compatible EOS control system.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n 1 TO 4 RELAYS\n \u003c\/div\u003e\n\n \u003ch3\u003eScalable Relay Capacity\u003c\/h3\u003e\n\n \u003cp\u003e\n Choose a configuration with one, two, three, or four additional\n relay boards based on the approved electrical and heater plan.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n 5 SIZES\n \u003c\/div\u003e\n\n \u003ch3\u003eFive Shopify Variants\u003c\/h3\u003e\n\n \u003cp\u003e\n Available as Small, Medium, Large, L-XL, and X-Large to represent\n the five EOS PEB NA configurations.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n TOUCH 3\n \u003c\/div\u003e\n\n \u003ch3\u003eCompatible with EOS Touch 3\u003c\/h3\u003e\n\n \u003cp\u003e\n Integrates with a properly configured EOS Touch 3 system and the\n required multi-heater Power Box.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n EMOTEC D\n \u003c\/div\u003e\n\n \u003ch3\u003eCompatible with EmoTec D\u003c\/h3\u003e\n\n \u003cp\u003e\n Also supports approved multi-heater systems using the EOS EmoTec D\n control platform.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n 12 RELAYS\n \u003c\/div\u003e\n\n \u003ch3\u003eLarge-System Expansion\u003c\/h3\u003e\n\n \u003cp\u003e\n Supported configurations can include up to 12 relay boards when the\n correct primary Power Box, PEB NA 5, and additional PEB are combined.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n SYSTEM-SIZED\n \u003c\/div\u003e\n\n \u003ch3\u003eSelected by Circuit Design\u003c\/h3\u003e\n\n \u003cp\u003e\n The correct variant is determined by heater quantity, heater output,\n voltage, phase, relay requirements, and the complete EOS system plan.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n EOS SYSTEM\n \u003c\/div\u003e\n\n \u003ch3\u003ePurpose-Built Integration\u003c\/h3\u003e\n\n \u003cp\u003e\n Designed specifically for connection to the main board and relay\n boards used within approved EOS multi-heater control systems.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n GERMAN DESIGN\n \u003c\/div\u003e\n\n \u003ch3\u003eEngineered by EOS\u003c\/h3\u003e\n\n \u003cp\u003e\n Designed and engineered as part of the EOS professional sauna\n control and heater ecosystem.\n \u003c\/p\u003e\n \u003c\/article\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-peb-selection-guide\"\u003e\n \u003cdiv class=\"mlhs-product__section-intro\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Power Extension Box Selection Guide\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-peb-selection-guide\"\u003e\n Choose the Correct Power Extension Box for Your EOS Multi-Heater System\n \u003c\/h2\u003e\n\n \u003cp\u003e\n The Power Extension Box is selected according to the complete heater\n design, electrical configuration, and number of required relay boards.\n It is \u003cstrong\u003enot selected by sauna room size\u003c\/strong\u003e. Your electrician\n or sauna designer should determine the proper configuration based on\n the complete EOS system layout.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__table-wrap\" role=\"region\" aria-label=\"Power Extension Box Selection Guide\" tabindex=\"0\"\u003e\n \u003ctable class=\"mlhs-product__table\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eShopify Variant\u003c\/th\u003e\n \u003cth\u003eEOS Model\u003c\/th\u003e\n \u003cth\u003eAdditional Relay Boards\u003c\/th\u003e\n \u003cth\u003eTypical Application\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n\n \u003ctbody\u003e\n\n \u003ctr\u003e\n \u003ctd\u003eSmall\u003c\/td\u003e\n \u003ctd\u003ePEB NA 1 Small\u003c\/td\u003e\n \u003ctd\u003e1\u003c\/td\u003e\n \u003ctd\u003eSmall multi-heater systems requiring one additional relay board.\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003eMedium\u003c\/td\u003e\n \u003ctd\u003ePEB NA 2 Small\u003c\/td\u003e\n \u003ctd\u003e2\u003c\/td\u003e\n \u003ctd\u003eMedium multi-heater commercial sauna installations.\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003eLarge\u003c\/td\u003e\n \u003ctd\u003ePEB NA 3\u003c\/td\u003e\n \u003ctd\u003e3\u003c\/td\u003e\n \u003ctd\u003eLarger commercial systems requiring three expansion relay boards.\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003eL-XL\u003c\/td\u003e\n \u003ctd\u003ePEB NA 4\u003c\/td\u003e\n \u003ctd\u003e4\u003c\/td\u003e\n \u003ctd\u003eLarge commercial heater installations requiring four relay boards.\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003eX-Large\u003c\/td\u003e\n \u003ctd\u003ePEB NA 5\u003c\/td\u003e\n \u003ctd\u003e\n 4 relay boards plus\n additional Power Box\n \u003c\/td\u003e\n \u003ctd\u003e\n Very large commercial installations supporting relay boards\n 7 through 12.\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__notice\"\u003e\n \u003cp\u003e\n \u003cstrong\u003eNeed help selecting the correct version?\u003c\/strong\u003e\n Contact us with your EOS control model, heater model(s), heater kW,\n voltage, electrical phase, and total heater quantity. We'll help you\n identify the correct Power Extension Box configuration before you\n order.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"when-do-i-need-peb\"\u003e\n\n \u003cdiv class=\"mlhs-product__compatibility\"\u003e\n\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Do You Actually Need One?\n \u003c\/span\u003e\n\n \u003ch2 id=\"when-do-i-need-peb\"\u003e\n When Is an EOS Power Extension Box Required?\n \u003c\/h2\u003e\n\n \u003cp\u003e\n Most residential sauna installations use a single heater and do\n \u003cstrong\u003enot\u003c\/strong\u003e require a Power Extension Box.\n The PEB is intended for larger systems where additional heater\n circuits must be controlled beyond the capacity of the primary\n EOS multi-heater Power Box.\n \u003c\/p\u003e\n\n \u003cdiv class=\"mlhs-product__compatibility-grid\"\u003e\n\n \u003carticle class=\"mlhs-product__compatibility-item\"\u003e\n\n \u003ch3\u003eUsually Not Required\u003c\/h3\u003e\n\n \u003cul class=\"mlhs-product__list\"\u003e\n \u003cli\u003eSingle-heater residential saunas\u003c\/li\u003e\n \u003cli\u003eMost standard home sauna installations\u003c\/li\u003e\n \u003cli\u003eSmall traditional saunas\u003c\/li\u003e\n \u003cli\u003eMost infrared sauna systems\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__compatibility-item\"\u003e\n\n \u003ch3\u003eOften Required\u003c\/h3\u003e\n\n \u003cul class=\"mlhs-product__list\"\u003e\n \u003cli\u003eCommercial wellness facilities\u003c\/li\u003e\n \u003cli\u003eLarge multi-heater sauna rooms\u003c\/li\u003e\n \u003cli\u003eHotels and resorts\u003c\/li\u003e\n \u003cli\u003eLuxury spa installations\u003c\/li\u003e\n \u003cli\u003eLarge custom sauna projects\u003c\/li\u003e\n \u003cli\u003eSystems requiring additional relay boards\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003c\/article\u003e\n\n \u003c\/div\u003e\n\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"required-components\"\u003e\n\n \u003cdiv class=\"mlhs-product__important\"\u003e\n\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Required Components\n \u003c\/span\u003e\n\n \u003ch2 id=\"required-components\"\u003e\n The Power Extension Box Is Only One Part of a Complete EOS Control System\n \u003c\/h2\u003e\n\n \u003cp\u003e\n The Power Extension Box cannot operate by itself. It expands the\n switching capacity of an approved EOS multi-heater control system.\n \u003c\/p\u003e\n\n \u003cdiv class=\"mlhs-product__grid\"\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n\n \u003ch3\u003eRequired Components\u003c\/h3\u003e\n\n \u003cul class=\"mlhs-product__list\"\u003e\n\n \u003cli\u003eCompatible EOS Touch 3 or EmoTec D control\u003c\/li\u003e\n\n \u003cli\u003e\n Compatible EOS Power Box \/ relay box\n \u003c\/li\u003e\n\n \u003cli\u003eCompatible EOS sauna heaters\u003c\/li\u003e\n\n \u003cli\u003eProperly sized electrical service\u003c\/li\u003e\n\n \u003cli\u003eQualified electrician\u003c\/li\u003e\n\n \u003cli\u003eCorrectly sized Power Extension Box\u003c\/li\u003e\n\n \u003cli\u003eEOS communication wiring\u003c\/li\u003e\n\n \u003c\/ul\u003e\n\n \u003ca class=\"mlhs-product__product-link\" href=\"\/products\/eos-touch-3-digital-touchscreen-sauna-control\"\u003e\n View EOS Touch 3 Controller\n \u003c\/a\u003e\n\n \u003c\/article\u003e\n\n\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n\n \u003ch3\u003eSold Separately\u003c\/h3\u003e\n\n \u003cul class=\"mlhs-product__list\"\u003e\n\n \u003cli\u003eTouch 3 control\u003c\/li\u003e\n\n \u003cli\u003eRelay \/ Power Box\u003c\/li\u003e\n\n \u003cli\u003eApp Module\u003c\/li\u003e\n\n \u003cli\u003eBench sensor\u003c\/li\u003e\n\n \u003cli\u003eFloor sensor\u003c\/li\u003e\n\n \u003cli\u003eWall sensor\u003c\/li\u003e\n\n \u003cli\u003eHumidity sensor\u003c\/li\u003e\n\n \u003cli\u003eExtension cables\u003c\/li\u003e\n\n \u003cli\u003eLighting module\u003c\/li\u003e\n\n \u003cli\u003eSound module\u003c\/li\u003e\n\n \u003cli\u003eSauna heater(s)\u003c\/li\u003e\n\n \u003cli\u003eElectrical installation\u003c\/li\u003e\n\n \u003c\/ul\u003e\n\n \u003c\/article\u003e\n\n \u003c\/div\u003e\n\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"common-mistakes\"\u003e\n\n \u003cdiv class=\"mlhs-product__important\"\u003e\n\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Before You Order\n \u003c\/span\u003e\n\n \u003ch2 id=\"common-mistakes\"\u003e\n Common Ordering Mistakes\n \u003c\/h2\u003e\n\n \u003cp\u003e\n The EOS Power Extension Box is frequently misunderstood.\n It does not replace several other important components in an EOS\n sauna control system.\n \u003c\/p\u003e\n\n \u003cdiv class=\"mlhs-product__grid\"\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n\n \u003ch3\u003eThe Power Extension Box Is NOT...\u003c\/h3\u003e\n\n \u003cul class=\"mlhs-product__list\"\u003e\n\n \u003cli\u003ea touchscreen controller\u003c\/li\u003e\n\n \u003cli\u003ea relay box replacement\u003c\/li\u003e\n\n \u003cli\u003ea Wi-Fi module\u003c\/li\u003e\n\n \u003cli\u003ean App Module\u003c\/li\u003e\n\n \u003cli\u003ea heater controller\u003c\/li\u003e\n\n \u003cli\u003ea transformer\u003c\/li\u003e\n\n \u003cli\u003ea complete electrical control package\u003c\/li\u003e\n\n \u003cli\u003ea stand-alone control system\u003c\/li\u003e\n\n \u003c\/ul\u003e\n\n \u003c\/article\u003e\n\n\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n\n \u003ch3\u003eIt IS...\u003c\/h3\u003e\n\n \u003cul class=\"mlhs-product__list\"\u003e\n\n \u003cli\u003eadditional relay capacity\u003c\/li\u003e\n\n \u003cli\u003epart of a multi-heater system\u003c\/li\u003e\n\n \u003cli\u003eused with compatible EOS controls\u003c\/li\u003e\n\n \u003cli\u003eused with a primary Power Box\u003c\/li\u003e\n\n \u003cli\u003eintended for larger commercial installations\u003c\/li\u003e\n\n \u003cli\u003eprofessionally installed equipment\u003c\/li\u003e\n\n \u003c\/ul\u003e\n\n \u003c\/article\u003e\n\n \u003c\/div\u003e\n\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"compatible-products\"\u003e\n\n \u003cdiv class=\"mlhs-product__section-intro\"\u003e\n\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Build Your EOS Control System\n \u003c\/span\u003e\n\n \u003ch2 id=\"compatible-products\"\u003e\n Compatible EOS Products\n \u003c\/h2\u003e\n\n \u003cp\u003e\n These products are commonly used together in larger EOS commercial\n sauna installations.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__grid\"\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n\n \u003ch3\u003eAlready Available\u003c\/h3\u003e\n\n \u003ca class=\"mlhs-product__product-link\" href=\"\/products\/eos-touch-3-digital-touchscreen-sauna-control\"\u003e\n EOS Touch 3 Digital Sauna Control\n \u003c\/a\u003e\n\n \u003ca class=\"mlhs-product__product-link\" href=\"\/products\/eos-spa-control-remote-connectivity-module\"\u003e\n EOS App Module\n \u003c\/a\u003e\n\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n\n \u003ch3\u003eAdditional EOS Components\u003c\/h3\u003e\n\n \u003ca class=\"mlhs-product__product-link\" href=\"\/products\/eos-touch-3-relay-box\"\u003e\n EOS Relay Box\n \u003c\/a\u003e\n\n \u003ca class=\"mlhs-product__product-link\" href=\"\/products\/eos-bench-sensor\"\u003e\n EOS Bench Sensor\n \u003c\/a\u003e\n\n \u003ca class=\"mlhs-product__product-link\" href=\"\/products\/eos-floor-sensor\"\u003e\n EOS Floor Sensor\n \u003c\/a\u003e\n\n \u003ca class=\"mlhs-product__product-link\" href=\"\/products\/eos-wall-sensor\"\u003e\n EOS Wall Sensor\n \u003c\/a\u003e\n\n \u003ca class=\"mlhs-product__product-link\" href=\"\/products\/eos-humidity-sensor\"\u003e\n EOS Humidity Sensor\n \u003c\/a\u003e\n\n \u003ca class=\"mlhs-product__product-link\" href=\"\/products\/eos-extension-cable-25m\"\u003e\n EOS Extension Cable\n \u003c\/a\u003e\n\n \u003c\/article\u003e\n\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-peb-variant-specifications\"\u003e\n \u003cdiv class=\"mlhs-product__section-intro\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Model Specifications\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-peb-variant-specifications\"\u003e\n EOS Power Extension Box Models and Relay Capacity\n \u003c\/h2\u003e\n\n \u003cp\u003e\n Each size corresponds to a specific EOS PEB NA configuration.\n Select the model based on the approved number of additional relay\n boards required for the complete multi-heater system.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__table-wrap\" role=\"region\" aria-label=\"EOS Power Extension Box model specifications\" tabindex=\"0\"\u003e\n \u003ctable class=\"mlhs-product__table\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eSize\u003c\/th\u003e\n \u003cth\u003eEOS Model\u003c\/th\u003e\n \u003cth\u003eSKU\u003c\/th\u003e\n \u003cth\u003eIncluded Relay Capacity\u003c\/th\u003e\n \u003cth\u003eAdditional Power Supply\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eSmall\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003ePEB NA 1 Small\u003c\/td\u003e\n \u003ctd\u003e14-949279\u003c\/td\u003e\n \u003ctd\u003e1 relay board\u003c\/td\u003e\n \u003ctd\u003eNo\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eMedium\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003ePEB NA 2 Small\u003c\/td\u003e\n \u003ctd\u003e14-949280\u003c\/td\u003e\n \u003ctd\u003e2 relay boards\u003c\/td\u003e\n \u003ctd\u003eNo\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eLarge\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003ePEB NA 3\u003c\/td\u003e\n \u003ctd\u003e14-949281\u003c\/td\u003e\n \u003ctd\u003e3 relay boards\u003c\/td\u003e\n \u003ctd\u003eNo\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eL-XL\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003ePEB NA 4\u003c\/td\u003e\n \u003ctd\u003e14-949282\u003c\/td\u003e\n \u003ctd\u003e4 relay boards\u003c\/td\u003e\n \u003ctd\u003eNo\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eX-Large\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003ePEB NA 5\u003c\/td\u003e\n \u003ctd\u003e14-949283\u003c\/td\u003e\n \u003ctd\u003e\n Expansion power supply for relay boards 7 through 12\n \u003c\/td\u003e\n \u003ctd\u003eYes\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__notice mlhs-product__notice--important\"\u003e\n \u003cp\u003e\n \u003cstrong\u003eImportant:\u003c\/strong\u003e\n The X-Large PEB NA 5 configuration provides the additional power\n supply used when expanding a system beyond six relay boards. It does\n not replace the separate relay boards required to reach the final\n circuit count.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-peb-general-specifications\"\u003e\n \u003cdiv class=\"mlhs-product__section-intro\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n General Specifications\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-peb-general-specifications\"\u003e\n Technical Overview\n \u003c\/h2\u003e\n\n \u003cp\u003e\n The Power Extension Box is designed exclusively to increase the\n switching capacity of a compatible EOS sauna control system operating\n electric sauna heaters inside a sauna cabin.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__table-wrap\" role=\"region\" aria-label=\"EOS Power Extension Box general specifications\" tabindex=\"0\"\u003e\n \u003ctable class=\"mlhs-product__table\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003cth\u003eManufacturer\u003c\/th\u003e\n \u003ctd\u003eEOS Saunatechnik GmbH\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003cth\u003eProduct type\u003c\/th\u003e\n \u003ctd\u003ePower switching and relay expansion component\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003cth\u003eSeries\u003c\/th\u003e\n \u003ctd\u003ePEB NA\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003cth\u003eApplication\u003c\/th\u003e\n \u003ctd\u003e\n Additional switching capacity for compatible multi-heater\n electric sauna systems\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003cth\u003eCompatible control platforms\u003c\/th\u003e\n \u003ctd\u003e\n Compatible North American EOS EmoTec and EmoTouch control\n systems configured for multi-heater operation\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003cth\u003ePrimary Power Box requirement\u003c\/th\u003e\n \u003ctd\u003e\n Compatible EOS multi-heater Power Box required\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003cth\u003eAvailable configurations\u003c\/th\u003e\n \u003ctd\u003e\n PEB NA 1 Small, PEB NA 2 Small, PEB NA 3, PEB NA 4,\n and PEB NA 5\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003cth\u003eMaximum supported relay boards\u003c\/th\u003e\n \u003ctd\u003e\n Up to 12 relay boards when configured according to the EOS\n system design\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003cth\u003eConnection\u003c\/th\u003e\n \u003ctd\u003e\n Connection to the main board of the compatible Power Box and\n designated relay-board connections\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003cth\u003eInstallation\u003c\/th\u003e\n \u003ctd\u003e\n Installation and electrical connection by a qualified,\n appropriately skilled person only\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003cth\u003eHeater protection requirement\u003c\/th\u003e\n \u003ctd\u003e\n External temperature cutout, or TCO, required for each sauna\n heater\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003cth\u003eIntended location\u003c\/th\u003e\n \u003ctd\u003e\n Installed as part of the approved sauna control and electrical\n system according to the EOS installation manual\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003cth\u003eIntended use\u003c\/th\u003e\n \u003ctd\u003e\n Electric sauna heaters in sauna cabins only\n \u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__notice\"\u003e\n \u003cp\u003e\n Technical requirements may vary according to the heater output,\n voltage, phase, control model, Power Box, relay arrangement, and\n applicable electrical codes. The final system must be designed and\n approved before ordering components.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-peb-capacity-explanation\"\u003e\n \u003cdiv class=\"mlhs-product__compatibility\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Understanding Relay Capacity\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-peb-capacity-explanation\"\u003e\n How the Power Extension System Expands\n \u003c\/h2\u003e\n\n \u003cp\u003e\n The primary multi-heater Power Box begins the system with its own\n relay capacity. A Power Extension Box then adds relay boards according\n to the number of additional heater circuits required.\n \u003c\/p\u003e\n\n \u003cdiv class=\"mlhs-product__steps\"\u003e\n \u003carticle class=\"mlhs-product__step\"\u003e\n \u003ch3\u003eStart with the Primary Power Box\u003c\/h3\u003e\n\n \u003cp\u003e\n The compatible multi-heater Power Box provides the main connection\n point and the first relay boards in the EOS control system.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__step\"\u003e\n \u003ch3\u003eAdd the Required Relay Boards\u003c\/h3\u003e\n\n \u003cp\u003e\n Select a Small, Medium, Large, or L-XL Power Extension Box based\n on the number of additional heater relay boards needed.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__step\"\u003e\n \u003ch3\u003eUse PEB NA 5 Beyond Six Relays\u003c\/h3\u003e\n\n \u003cp\u003e\n Systems requiring relay boards 7 through 12 use the PEB NA 5\n expansion power supply together with the required additional\n relay-board configuration.\n \u003c\/p\u003e\n \u003c\/article\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__notice mlhs-product__notice--important\"\u003e\n \u003cp\u003e\n \u003cstrong\u003eDo not calculate the required model from heater quantity\n alone.\u003c\/strong\u003e\n Some heater outputs and electrical configurations may require\n different relay arrangements. Follow the approved EOS system design\n and the instructions supplied with the control and heaters.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-peb-system-example\"\u003e\n \u003cdiv class=\"mlhs-product__section-intro\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Maximum Configuration Example\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-peb-system-example\"\u003e\n Expanding an EOS System to 12 Relay Boards\n \u003c\/h2\u003e\n\n \u003cp\u003e\n Bathing Brands identifies the following combination as an example of\n the maximum 12-relay-board configuration.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__grid mlhs-product__grid--three\"\u003e\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n 2 RELAYS\n \u003c\/div\u003e\n\n \u003ch3\u003ePrimary Power Unit\u003c\/h3\u003e\n\n \u003cp\u003e\n The compatible primary multi-heater Power Box provides the first\n two relay boards.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n +4 RELAYS\n \u003c\/div\u003e\n\n \u003ch3\u003ePEB NA 5 System\u003c\/h3\u003e\n\n \u003cp\u003e\n The PEB NA 5 provides the expansion power supply used for the\n second group of relay boards, together with four relay boards.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n +6 RELAYS\n \u003c\/div\u003e\n\n \u003ch3\u003eAdditional PEB Capacity\u003c\/h3\u003e\n\n \u003cp\u003e\n A PEB NA 4 and PEB NA 2 provide six additional relay boards,\n bringing the system total to 12.\n \u003c\/p\u003e\n \u003c\/article\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__notice\"\u003e\n \u003cp\u003e\n This is an equipment-configuration example, not a universal wiring\n plan. Heater capacity, voltage, phase, branch circuits, conductor\n sizing, protection devices, TCO requirements, and local electrical\n codes must be addressed by the qualified professionals responsible\n for the project.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-peb-component-comparison\"\u003e\n \u003cdiv class=\"mlhs-product__section-intro\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Component Comparison\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-peb-component-comparison\"\u003e\n How the EOS Control Components Work Together\n \u003c\/h2\u003e\n\n \u003cp\u003e\n Each component performs a different function. A Power Extension Box\n does not replace the touchscreen control, primary Power Box, sensors,\n or optional remote-connectivity equipment.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__table-wrap\" role=\"region\" aria-label=\"Comparison of EOS sauna control components\" tabindex=\"0\"\u003e\n \u003ctable class=\"mlhs-product__table\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eComponent\u003c\/th\u003e\n \u003cth\u003ePrimary Function\u003c\/th\u003e\n \u003cth\u003eIncluded with PEB?\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\n \u003ca href=\"\/products\/eos-touch-3-digital-touchscreen-sauna-control\"\u003e\n \u003cstrong\u003eEOS Touch 3\u003c\/strong\u003e\n \u003c\/a\u003e\n \u003c\/td\u003e\n \u003ctd\u003e\n Provides the user interface and control commands for the\n compatible sauna system.\n \u003c\/td\u003e\n \u003ctd\u003eNo\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003e\n \u003ca href=\"\/products\/eos-touch-3-relay-box\"\u003e\n \u003cstrong\u003eEOS Power Box\u003c\/strong\u003e\n \u003c\/a\u003e\n \u003c\/td\u003e\n \u003ctd\u003e\n Houses the primary control electronics and heater-switching\n components.\n \u003c\/td\u003e\n \u003ctd\u003eNo\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eEOS Power Extension Box\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e\n Adds relay capacity for additional heaters in a compatible\n multi-heater system.\n \u003c\/td\u003e\n \u003ctd\u003eThis product\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003e\n \u003ca href=\"\/products\/eos-spa-control-remote-connectivity-module\"\u003e\n \u003cstrong\u003eEOS App Module\u003c\/strong\u003e\n \u003c\/a\u003e\n \u003c\/td\u003e\n \u003ctd\u003e\n Adds supported mobile-device connectivity to a compatible EOS\n control system.\n \u003c\/td\u003e\n \u003ctd\u003eNo\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eEOS Sensors\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e\n Monitor required sauna conditions and provide information to\n the control system.\n \u003c\/td\u003e\n \u003ctd\u003eNo\u003c\/td\u003e\n \u003c\/tr\u003e\n\n \u003ctr\u003e\n \u003ctd\u003e\u003cstrong\u003eExternal TCO\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd\u003e\n Provides the required external temperature cutout protection\n for each sauna heater.\n \u003c\/td\u003e\n \u003ctd\u003eNo\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-peb-package-contents\"\u003e\n \u003cdiv class=\"mlhs-product__section-intro\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Package Contents\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-peb-package-contents\"\u003e\n What Is Included\n \u003c\/h2\u003e\n\n \u003cp\u003e\n Package contents depend on the selected PEB NA configuration.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__grid\"\u003e\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003ch3\u003eSmall Through L-XL\u003c\/h3\u003e\n\n \u003cul class=\"mlhs-product__list\"\u003e\n \u003cli\u003e\n Selected EOS PEB NA relay-board configuration\n \u003c\/li\u003e\n\n \u003cli\u003e\n Model-specific connection components supplied by EOS\n \u003c\/li\u003e\n\n \u003cli\u003e\n Installation documentation\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003ch3\u003eX-Large\u003c\/h3\u003e\n\n \u003cul class=\"mlhs-product__list\"\u003e\n \u003cli\u003e\n EOS PEB NA 5 expansion power supply\n \u003c\/li\u003e\n\n \u003cli\u003e\n Model-specific connection components supplied by EOS\n \u003c\/li\u003e\n\n \u003cli\u003e\n Installation documentation\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/article\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__notice mlhs-product__notice--important\"\u003e\n \u003cp\u003e\n \u003cstrong\u003eVerify package requirements before ordering.\u003c\/strong\u003e\n The control, primary multi-heater Power Box, heaters, external TCO\n devices, sensors, field wiring, circuit protection, and professional\n installation are not included unless expressly listed with the\n selected product variant.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-peb-documents\"\u003e\n \u003cdiv class=\"mlhs-product__section-intro\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Product Documents\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-peb-documents\"\u003e\n Installation Manual\n \u003c\/h2\u003e\n\n \u003cp\u003e\n Review the EOS manual with the sauna designer and electrician before\n selecting, installing, connecting, or servicing the Power Extension\n Box.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__document\"\u003e\n \u003cdiv class=\"mlhs-product__document-copy\"\u003e\n \u003ch3\u003eEOS Power Extension Box Installation Manual\u003c\/h3\u003e\n\n \u003cp\u003e\n Includes model identification, scope of delivery, connection\n diagrams, relay-board configuration examples, and installation\n requirements.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003ca class=\"mlhs-product__document-link\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/6455\/2421\/files\/EOS-Power-Extension-Box-IOM.pdf?v=1784920008\" target=\"_blank\" rel=\"noopener noreferrer\" aria-label=\"Open the EOS Power Extension Box Installation Manual in a new window\"\u003e\n View Installation Manual\n \u003c\/a\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-peb-installation\"\u003e\n \u003cdiv class=\"mlhs-product__important\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Professional Installation Required\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-peb-installation\"\u003e\n Installation and Electrical Planning\n \u003c\/h2\u003e\n\n \u003cp\u003e\n The Power Extension Box is a professional electrical component.\n Connection must be completed only by a qualified and appropriately\n skilled person in accordance with the EOS documentation, the manuals\n for the control and heaters, and all applicable electrical codes.\n \u003c\/p\u003e\n\n \u003cdiv class=\"mlhs-product__steps\"\u003e\n \u003carticle class=\"mlhs-product__step\"\u003e\n \u003ch3\u003eDesign the Complete System\u003c\/h3\u003e\n\n \u003cp\u003e\n Confirm the heater models, heater quantities, voltage, phase,\n total load, primary Power Box, relay-board requirements, sensors,\n external TCO devices, and control model.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__step\"\u003e\n \u003ch3\u003eSelect the Correct PEB\u003c\/h3\u003e\n\n \u003cp\u003e\n Match the Small, Medium, Large, L-XL, or X-Large configuration\n to the approved relay-board plan. Do not select the model from\n room size or total heater quantity alone.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__step\"\u003e\n \u003ch3\u003eInstall and Commission\u003c\/h3\u003e\n\n \u003cp\u003e\n A qualified professional must make the electrical connections,\n verify heater protection, test the complete control system, and\n commission the sauna before use.\n \u003c\/p\u003e\n \u003c\/article\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__notice mlhs-product__notice--important\"\u003e\n \u003cp\u003e\n \u003cstrong\u003eExternal TCO required:\u003c\/strong\u003e\n The EOS manual states that an external temperature cutout is\n required for each sauna heater connected within the system.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-peb-before-ordering\"\u003e\n \u003cdiv class=\"mlhs-product__section-intro\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Before Ordering\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-peb-before-ordering\"\u003e\n Information Needed to Confirm the Correct Configuration\n \u003c\/h2\u003e\n\n \u003cp\u003e\n Having the following project information available will help prevent\n incorrect component selection and installation delays.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__grid mlhs-product__grid--three\"\u003e\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003ch3\u003eHeater Information\u003c\/h3\u003e\n\n \u003cul class=\"mlhs-product__list\"\u003e\n \u003cli\u003eExact heater model\u003c\/li\u003e\n \u003cli\u003eQuantity of heaters\u003c\/li\u003e\n \u003cli\u003eRated output of each heater\u003c\/li\u003e\n \u003cli\u003eRequired external TCO equipment\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003ch3\u003eElectrical Information\u003c\/h3\u003e\n\n \u003cul class=\"mlhs-product__list\"\u003e\n \u003cli\u003eAvailable voltage\u003c\/li\u003e\n \u003cli\u003eElectrical phase\u003c\/li\u003e\n \u003cli\u003eTotal connected load\u003c\/li\u003e\n \u003cli\u003eBranch-circuit design\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003ch3\u003eControl Information\u003c\/h3\u003e\n\n \u003cul class=\"mlhs-product__list\"\u003e\n \u003cli\u003eEOS control model\u003c\/li\u003e\n \u003cli\u003ePrimary Power Box model\u003c\/li\u003e\n \u003cli\u003eNumber of required relay boards\u003c\/li\u003e\n \u003cli\u003eExisting or new installation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/article\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"why-buy-eos-peb-mlhs\"\u003e\n \u003cdiv class=\"mlhs-product__section-intro\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Why Buy from My Luxury Home Spa?\n \u003c\/span\u003e\n\n \u003ch2 id=\"why-buy-eos-peb-mlhs\"\u003e\n Support for Complex EOS Sauna Projects\n \u003c\/h2\u003e\n\n \u003cp\u003e\n Multi-heater sauna systems require careful coordination between the\n control, Power Box, extension equipment, heaters, sensors, protection\n devices, and electrical design. My Luxury Home Spa helps customers\n identify the information needed before placing an order.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__grid mlhs-product__grid--three\"\u003e\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n PROJECT HELP\n \u003c\/div\u003e\n\n \u003ch3\u003ePreorder Guidance\u003c\/h3\u003e\n\n \u003cp\u003e\n We can review the supplied control, heater, and electrical\n information to help identify which EOS components should be\n confirmed for the project.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n EOS SYSTEMS\n \u003c\/div\u003e\n\n \u003ch3\u003eCompatible Components\u003c\/h3\u003e\n\n \u003cp\u003e\n Shop related EOS controls, connectivity modules, sensors, heater\n accessories, and system components from one specialty retailer.\n \u003c\/p\u003e\n \u003c\/article\u003e\n\n \u003carticle class=\"mlhs-product__card\"\u003e\n \u003cdiv class=\"mlhs-product__icon\" aria-hidden=\"true\"\u003e\n VETERAN-OWNED\n \u003c\/div\u003e\n\n \u003ch3\u003eVeteran-Owned Business\u003c\/h3\u003e\n\n \u003cp\u003e\n My Luxury Home Spa is a veteran-owned business focused on premium\n home, commercial, and hospitality wellness equipment.\n \u003c\/p\u003e\n \u003c\/article\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n\n \u003csection class=\"mlhs-product__cta\" aria-labelledby=\"eos-peb-order-cta\"\u003e\n \u003cdiv class=\"mlhs-product__cta-inner\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Confirm Your Configuration\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-peb-order-cta\"\u003e\n Select the Correct EOS Power Extension Box\n \u003c\/h2\u003e\n\n \u003cp\u003e\n Choose Small, Medium, Large, L-XL, or X-Large only after confirming\n the required relay capacity with the sauna designer, EOS system\n documentation, and qualified electrician.\n \u003c\/p\u003e\n\n \u003cdiv class=\"mlhs-product__buttons\"\u003e\n \u003ca class=\"mlhs-product__button mlhs-product__button--primary\" href=\"#product-form\"\u003e\n Choose a Size\n \u003c\/a\u003e\n\n \u003ca class=\"mlhs-product__button mlhs-product__button--secondary\" href=\"\/pages\/contact-us\"\u003e\n Request Selection Help\n \u003c\/a\u003e\n \u003c\/div\u003e\n \u003c\/div\u003e\n \u003c\/section\u003e\n \u003csection class=\"mlhs-product__section\" aria-labelledby=\"eos-peb-faq-heading\"\u003e\n \u003cdiv class=\"mlhs-product__section-intro\"\u003e\n \u003cspan class=\"mlhs-product__eyebrow\"\u003e\n Frequently Asked Questions\n \u003c\/span\u003e\n\n \u003ch2 id=\"eos-peb-faq-heading\"\u003e\n EOS Power Extension Box FAQ\n \u003c\/h2\u003e\n\n \u003cp\u003e\n Review these answers before selecting a Power Extension Box for an\n EOS multi-heater sauna control system.\n \u003c\/p\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"mlhs-product__faq\"\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n What does the EOS Power Extension Box do?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n The EOS Power Extension Box adds relay capacity to a compatible\n EOS multi-heater sauna control system. It allows the system to\n operate additional heater circuits beyond the capacity provided\n by the primary multi-heater Power Box.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Is the Power Extension Box a complete sauna controller?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n No. The Power Extension Box is not a stand-alone controller. It\n must be used as part of a compatible EOS system that includes the\n appropriate control panel, primary Power Box, heaters, sensors,\n protection devices, and electrical components.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Which size options are available?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n The available Shopify variants are Small, Medium, Large, L-XL,\n and X-Large. These correspond to the EOS PEB NA 1 Small, PEB NA 2\n Small, PEB NA 3, PEB NA 4, and PEB NA 5 configurations.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n How do I choose the correct Power Extension Box size?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n The correct size is based on the approved number of additional\n relay boards required by the complete sauna system. Selection\n should account for the heater models, heater outputs, voltage,\n phase, control model, primary Power Box, total connected load,\n and electrical design.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Do not choose the Power Extension Box from sauna room dimensions\n alone.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Is the Power Extension Box selected by sauna room size?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n No. Sauna room size may influence the heater design, but the Power\n Extension Box itself is selected according to the required relay\n configuration and complete electrical system plan.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n What is included with the Small Power Extension Box?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n The Small variant corresponds to the EOS PEB NA 1 Small\n configuration and provides one additional relay board for an\n approved compatible system.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n What is included with the Medium Power Extension Box?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n The Medium variant corresponds to the EOS PEB NA 2 Small\n configuration and provides two additional relay boards for an\n approved compatible system.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n What is included with the Large Power Extension Box?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n The Large variant corresponds to the EOS PEB NA 3 configuration\n and provides three additional relay boards for an approved\n compatible system.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n What is included with the L-XL Power Extension Box?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n The L-XL variant corresponds to the EOS PEB NA 4 configuration\n and provides four additional relay boards for an approved\n compatible system.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n What is different about the X-Large Power Extension Box?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n The X-Large variant corresponds to the EOS PEB NA 5. It provides\n the additional expansion power supply used when a system extends\n beyond six relay boards and supports relay-board positions seven\n through twelve.\n \u003c\/p\u003e\n\n \u003cp\u003e\n The final configuration may require additional relay boards and\n extension equipment beyond the PEB NA 5 itself.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n How many relay boards can a complete EOS system support?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n A properly configured EOS multi-heater system can support up to\n twelve relay boards when the required primary Power Box, Power\n Extension Boxes, relay boards, wiring, and control components are\n combined according to the EOS documentation.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Do most residential saunas need a Power Extension Box?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n No. Most residential sauna installations use one heater and do\n not require this component. The Power Extension Box is generally\n used in larger custom or commercial multi-heater systems.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Can I use the Power Extension Box with a single sauna heater?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n It is generally unnecessary for a standard single-heater system.\n The component is designed to provide additional relay capacity\n for approved multi-heater installations.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Is the EOS Touch 3 control included?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n No. The compatible touchscreen control is sold separately. View\n the\n \u003ca href=\"\/products\/eos-touch-3-digital-touchscreen-sauna-control\"\u003e\n EOS Touch 3 Digital Sauna Control\n \u003c\/a\u003e\n for additional information.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Is the primary EOS Power Box included?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n No, unless it is expressly identified as part of a specific\n package. A compatible primary multi-heater Power Box is required\n for the Power Extension Box to function.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Does the Power Extension Box replace the primary Power Box?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n No. It expands the primary Power Box. It does not replace the main\n control electronics or the primary heater-switching equipment.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Is the EOS App Module included?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n No. Mobile connectivity requires a separately purchased\n compatible\n \u003ca href=\"\/products\/eos-spa-control-remote-connectivity-module\"\u003e\n EOS App Module\n \u003c\/a\u003e\n and supported EOS control system.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Are sauna heaters included?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n No. Sauna heaters are sold separately and must be selected as part\n of the complete room, heating, control, and electrical design.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Are sensors included?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n Required temperature, bench, wall, floor, humidity, or other\n system sensors are not included unless expressly stated in the\n selected package. Sensor requirements depend on the control,\n heater, and sauna configuration.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Is an external temperature cutout required?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n Yes. The EOS installation documentation states that an external\n temperature cutout, commonly called a TCO, is required for each\n sauna heater in the system.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Can the Power Extension Box be installed by the homeowner?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n No. This is professional electrical equipment. Installation,\n wiring, testing, and commissioning must be completed by a\n qualified and appropriately skilled person in accordance with the\n EOS manuals and applicable electrical codes.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Does the product include electrical wiring and circuit protection?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n Field wiring, branch circuits, disconnects, breakers, conductor\n sizing, electrical panels, and other installation materials are\n not included unless specifically stated. These must be determined\n by the qualified professionals responsible for the project.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Can one Power Extension Box operate any number of heaters?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n No. Each configuration provides a defined amount of relay\n capacity. The heater and relay arrangement must remain within the\n limitations of the selected EOS equipment and the approved system\n design.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Can the Power Extension Box be added to an existing sauna?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n It may be possible when the existing control system, Power Box,\n heaters, wiring, sensors, and electrical service are compatible.\n A qualified sauna and electrical professional should evaluate the\n existing installation before components are purchased.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n Where can I find the installation instructions?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n The\n \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/6455\/2421\/files\/EOS-Power-Extension-Box-IOM.pdf?v=1784920008\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\n EOS Power Extension Box Instructions and Operation Manual\n \u003c\/a\u003e\n is available in the Product Documents section of this page.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003cdetails\u003e\n \u003csummary\u003e\n What information should I provide before requesting selection help?\n \u003c\/summary\u003e\n\n \u003cdiv class=\"mlhs-product__faq-answer\"\u003e\n \u003cp\u003e\n Provide the exact EOS control model, primary Power Box model,\n heater models, heater quantity, rated output of each heater,\n voltage, phase, total connected load, number of required relay\n boards, and whether the project is a new or existing installation.\n \u003c\/p\u003e\n \u003c\/div\u003e\n \u003c\/details\u003e\n\n \u003c\/div\u003e\n \u003c\/section\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n {\n \"@type\": \"Question\",\n \"name\": \"What does the EOS Power Extension Box do?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The EOS Power Extension Box adds relay capacity to a compatible EOS multi-heater sauna control system. It allows the system to operate additional heater circuits beyond the capacity provided by the primary multi-heater Power Box.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Is the Power Extension Box a complete sauna controller?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. The Power Extension Box is not a stand-alone controller. It must be used as part of a compatible EOS system that includes the appropriate control panel, primary Power Box, heaters, sensors, protection devices, and electrical components.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Which size options are available?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The available variants are Small, Medium, Large, L-XL, and X-Large. These correspond to the EOS PEB NA 1 Small, PEB NA 2 Small, PEB NA 3, PEB NA 4, and PEB NA 5 configurations.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"How do I choose the correct Power Extension Box size?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The correct size is based on the approved number of additional relay boards required by the complete sauna system. Selection should account for the heater models, heater outputs, voltage, phase, control model, primary Power Box, total connected load, and electrical design. Do not choose the Power Extension Box from sauna room dimensions alone.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Is the Power Extension Box selected by sauna room size?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. Sauna room size may influence the heater design, but the Power Extension Box itself is selected according to the required relay configuration and complete electrical system plan.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What is included with the Small Power Extension Box?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The Small variant corresponds to the EOS PEB NA 1 Small configuration and provides one additional relay board for an approved compatible system.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What is included with the Medium Power Extension Box?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The Medium variant corresponds to the EOS PEB NA 2 Small configuration and provides two additional relay boards for an approved compatible system.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What is included with the Large Power Extension Box?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The Large variant corresponds to the EOS PEB NA 3 configuration and provides three additional relay boards for an approved compatible system.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What is included with the L-XL Power Extension Box?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The L-XL variant corresponds to the EOS PEB NA 4 configuration and provides four additional relay boards for an approved compatible system.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What is different about the X-Large Power Extension Box?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The X-Large variant corresponds to the EOS PEB NA 5. It provides the additional expansion power supply used when a system extends beyond six relay boards and supports relay-board positions seven through twelve. The final configuration may require additional relay boards and extension equipment beyond the PEB NA 5 itself.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"How many relay boards can a complete EOS system support?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"A properly configured EOS multi-heater system can support up to twelve relay boards when the required primary Power Box, Power Extension Boxes, relay boards, wiring, and control components are combined according to the EOS documentation.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Do most residential saunas need a Power Extension Box?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. Most residential sauna installations use one heater and do not require this component. The Power Extension Box is generally used in larger custom or commercial multi-heater systems.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Can I use the Power Extension Box with a single sauna heater?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"It is generally unnecessary for a standard single-heater system. The component is designed to provide additional relay capacity for approved multi-heater installations.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Is the EOS Touch 3 control included?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. The compatible touchscreen control is sold separately.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Is the primary EOS Power Box included?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No, unless it is expressly identified as part of a specific package. A compatible primary multi-heater Power Box is required for the Power Extension Box to function.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Does the Power Extension Box replace the primary Power Box?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. It expands the primary Power Box. It does not replace the main control electronics or the primary heater-switching equipment.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Is the EOS App Module included?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. Mobile connectivity requires a separately purchased compatible EOS App Module and supported EOS control system.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Are sauna heaters included?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. Sauna heaters are sold separately and must be selected as part of the complete room, heating, control, and electrical design.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Are sensors included?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Required temperature, bench, wall, floor, humidity, or other system sensors are not included unless expressly stated in the selected package. Sensor requirements depend on the control, heater, and sauna configuration.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Is an external temperature cutout required?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Yes. The EOS installation documentation states that an external temperature cutout, commonly called a TCO, is required for each sauna heater in the system.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Can the Power Extension Box be installed by the homeowner?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. This is professional electrical equipment. Installation, wiring, testing, and commissioning must be completed by a qualified and appropriately skilled person in accordance with the EOS manuals and applicable electrical codes.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Does the product include electrical wiring and circuit protection?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Field wiring, branch circuits, disconnects, breakers, conductor sizing, electrical panels, and other installation materials are not included unless specifically stated. These must be determined by the qualified professionals responsible for the project.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Can one Power Extension Box operate any number of heaters?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"No. Each configuration provides a defined amount of relay capacity. The heater and relay arrangement must remain within the limitations of the selected EOS equipment and the approved system design.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Can the Power Extension Box be added to an existing sauna?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"It may be possible when the existing control system, Power Box, heaters, wiring, sensors, and electrical service are compatible. A qualified sauna and electrical professional should evaluate the existing installation before components are purchased.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"Where can I find the installation instructions?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"The EOS Power Extension Box Instructions and Operation Manual is available in the Product Documents section of this page.\"\n }\n },\n {\n \"@type\": \"Question\",\n \"name\": \"What information should I provide before requesting selection help?\",\n \"acceptedAnswer\": {\n \"@type\": \"Answer\",\n \"text\": \"Provide the exact EOS control model, primary Power Box model, heater models, heater quantity, rated output of each heater, voltage, phase, total connected load, number of required relay boards, and whether the project is a new or existing installation.\"\n }\n }\n ]\n}\n\u003c\/script\u003e","brand":"EOS","offers":[{"title":"Small","offer_id":50726879068389,"sku":"14-949279","price":3405.0,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":50726879101157,"sku":"14-949280","price":4675.0,"currency_code":"USD","in_stock":true},{"title":"Large","offer_id":50726879133925,"sku":"14-949281","price":6370.0,"currency_code":"USD","in_stock":true},{"title":"L-XL","offer_id":50726879166693,"sku":"14-949282","price":7575.0,"currency_code":"USD","in_stock":true},{"title":"X-Large","offer_id":50726879199461,"sku":"14-949283","price":8410.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/6455\/2421\/files\/eos-power-extension-box-for-multi-heater-sauna-systems-4741116.jpg?v=1784928247","url":"https:\/\/myluxuryhomespa.com\/products\/eos-power-extension-box","provider":"My Luxury Home Spa","version":"1.0","type":"link"}