{"product_id":"systemair-rbk-50-21-21kw-3-phase-duct-heater-for-square-ducts-500mm-x-500mm-alu-zinc-casing-with-stainless-steel-elements-400v-overheat-protection-silver","title":"RBK 50\/21 21kW 3-Phase Duct Heater for Square Ducts– 500mm x 500mm, Alu-Zinc Casing with Stainless Steel Elements, 400V, Overheat Protection, Silver","description":"\u003cul\u003e\n\u003cli data-section-id=\"1s3bpg1\" data-start=\"1198\" data-end=\"1291\"\u003e\n\u003cstrong data-start=\"1200\" data-end=\"1223\"\u003eHigh-Power Heating:\u003c\/strong\u003e 21kW 3-phase duct heater, suitable for square duct installations.\u003c\/li\u003e\n\u003cli data-section-id=\"biatoa\" data-start=\"1292\" data-end=\"1410\"\u003e\n\u003cstrong data-start=\"1294\" data-end=\"1319\"\u003eDurable Construction:\u003c\/strong\u003e Alu-zinc coated metal casing with stainless steel heating elements for long-lasting use.\u003c\/li\u003e\n\u003cli data-section-id=\"1rr1i8g\" data-start=\"1411\" data-end=\"1514\"\u003e\n\u003cstrong data-start=\"1413\" data-end=\"1432\"\u003eSafe Operation:\u003c\/strong\u003e Built-in manual-reset overheating protection ensures reliable and safe heating.\u003c\/li\u003e\n\u003cli data-section-id=\"12ihhui\" data-start=\"1515\" data-end=\"1654\"\u003e\n\u003cstrong data-start=\"1517\" data-end=\"1539\"\u003ePrecision Control:\u003c\/strong\u003e Compatible with TTC controller combined with TT-Slave (TT-S1) or TT-M Slave for accurate temperature regulation.\u003c\/li\u003e\n\u003cli data-section-id=\"1qpl31d\" data-start=\"1655\" data-end=\"1798\"\u003e\n\u003cstrong data-start=\"1657\" data-end=\"1683\"\u003eOptimized Performance:\u003c\/strong\u003e Minimum airflow of 0.253 m³\/s (based on 1.5 m\/s) and maximum outgoing temperature of 40°C for efficient heating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"438\" data-end=\"1166\"\u003eThe Systemair RBK 50\/21 Duct Heater is designed for efficient heating of square ducts, delivering 21kW of power through a reliable 3-phase 400V system. Constructed with a durable alu-zinc coated sheet metal casing and high-quality stainless steel heating elements, this duct heater ensures long-lasting performance. It includes built-in manual-reset overheating protection for safe operation and can be easily controlled via a TTC controller paired with TT-Slave (TT-S1) or TT-M Slave. Designed for a minimum airflow of 0.253 m³\/s (based on 1.5 m\/s), the heater is optimized for a maximum outgoing temperature of 40°C. Ideal for industrial and commercial applications, it combines safety, efficiency, and ease of installation.\u003c\/p\u003e","brand":"Puravent","offers":[{"title":"Default Title","offer_id":53422931837265,"sku":"5447","price":1314.86,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0982\/4098\/7473\/files\/28.jpg?v=1774989163","url":"https:\/\/veralis.co.uk\/products\/systemair-rbk-50-21-21kw-3-phase-duct-heater-for-square-ducts-500mm-x-500mm-alu-zinc-casing-with-stainless-steel-elements-400v-overheat-protection-silver","provider":"Veralis","version":"1.0","type":"link"}