{"product_id":"solar-heizstab-fothermo-rod-550-550-w-mc4","title":"Solar heating element fothermo ROD-550 – 550 W PV heating element with MC4","description":"\u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eProduct Overview \u0026amp; Application Area\u003c\/h2\u003e \u003cp\u003eThe fothermo ROD-550 is a photovoltaic screw-in heating element for direct water heating in suitable hot water and heating storage tanks. The direct current from the photovoltaic modules is used directly for heat generation. For pure off-grid operation, neither an inverter nor a battery storage system is required.\u003c\/p\u003e \u003cp\u003eThe solar heating element achieves a heating output of up to 550 W in photovoltaic operation. It is suitable for storage tanks with a matching G-1-1\/2-inch thread socket and sufficient installation space. The actually available heating output depends on the connected module output and the current solar irradiation.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eTechnology \u0026amp; Equipment\u003c\/h2\u003e \u003cp\u003eAn integrated MPP tracker adapts operation to the available output of the photovoltaic modules. The digital display shows the current water temperature, PV input power, input voltage, and the total photovoltaic energy used.\u003c\/p\u003e \u003cp\u003eThe desired maximum temperature is adjustable and preset to 65 °C at the factory. The heating process ends as soon as the set temperature is reached. An integrated reverse polarity protection supports the safe connection of the photovoltaic modules.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eEveryday Benefits\u003c\/h2\u003e \u003cp\u003eThe ROD-550 uses solar power directly where heat is needed: in the existing water storage tank. This can relieve the conventional hot water preparation, especially during sun-rich periods.\u003c\/p\u003e \u003cp\u003eThe direct MC4 connection reduces the required system setup. The heating element operates with safety extra-low voltage and independently of the public power grid. The display enables quick monitoring of the current operating status.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eSystem Integration \u0026amp; Compatibility\u003c\/h2\u003e \u003cp\u003eThe heating element is screwed into a designated tank socket via a G-1-1\/2-inch external thread. Before selection, the connection size, available installation space, and the suitability of the tank for a screw-in heating element must be checked.\u003c\/p\u003e \u003cp\u003eThe photovoltaic modules are connected via the permanently mounted MC4 connectors. Multiple modules may only be connected in parallel. The maximum open-circuit voltage of the connected modules must not exceed 50 V DC. A total of up to 2,000 Wp of photovoltaic power can be connected.\u003c\/p\u003e \u003c\/div\u003e \u003cstyle\u003e .product-th{margin-top:2rem}.product-th h2{margin:0 0 1rem}.product-th__table{width:100%;border-collapse:separate;border-spacing:0}.product-th__table td{padding:.95rem 1rem;vertical-align:top}.product-th__label{font-weight:700;width:38%;color:#213670}.product-th__value{color:#1f2937}.product-th__table tr:nth-child(odd) td{background:#f4f7fb}.product-th__table tr:nth-child(even) td{background:#fafbfd} \u003c\/style\u003e \u003cdiv class=\"product-th\"\u003e \u003ch2\u003eTechnical data at a glance\u003c\/h2\u003e \u003ctable class=\"product-th__table\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eHeating output\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eup to 550 W in PV operation\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003ePV voltage\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003emaximum 50 V DC open-circuit voltage\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eElectrical connection\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eMC4\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eInstallation length\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eapprox. 303 mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eMaximum water temperature\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003e85 °C\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eStorage tank connection\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eG 1 1\/2 inch external thread\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd class=\"product-th__label\"\u003eWeight\u003c\/td\u003e \u003ctd class=\"product-th__value\"\u003eapprox. 0.8 kg\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eInstallation\u003c\/h2\u003e \u003cp\u003eInstallation must be carried out by a qualified person in compliance with local regulations and the complete manufacturer\u0026#39;s instructions. Before screwing in, drain the storage tank and seal the connection thread properly.\u003c\/p\u003e \u003cp\u003eAfter installation, the storage tank must be completely filled with water before connecting the photovoltaic modules. Align the housing so that the MC4 connectors point downward and are protected from water contact.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eNotes\u003c\/h2\u003e \u003cp\u003eDry operation of the heating element is not permitted. Photovoltaic modules may only be connected in parallel; connecting them in series can damage the device. The maximum open-circuit voltage of 50 V DC must not be exceeded.\u003c\/p\u003e \u003cp\u003eFor service and drinking water as well as for water with a high lime content, the temperature must be limited to a maximum of 65 °C. The possible amount of hot water and heating time depend on the storage tank volume, initial temperature, PV output, and solar irradiation.\u003c\/p\u003e \u003c\/div\u003e \u003cdiv class=\"gema-section\"\u003e \u003ch2\u003eScope of delivery\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e1 x fothermo solar heating element ROD-550\u003c\/li\u003e \u003cli\u003e1 x manufacturer\u0026#39;s operating instructions\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e","brand":"Fothermo","offers":[{"title":"Заглавие по подразбиране","offer_id":58442486579548,"sku":"FSHP500","price":407.39,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/7796\/6428\/files\/fothermo_photovoltaischer_Heizstab_Ansicht_01_608x608_0b6b57f0-fb88-4a26-8827-d92bd906c911.webp?v=1785219619","url":"https:\/\/bg.gemashop.de\/en\/products\/solar-heating-element-fothermo-rod-550-550-w-mc4","provider":"GEMA Shop","version":"1.0","type":"link"}