SERN 4.5kW 1.5 Inch Screw Plug Industrial Boiler Heating Element 380V CR316 Chrome Stainless Steel Immersion Heater
The SERN 4.5kW heavy-duty industrial boiler heating element is engineered with high-grade manufacturing standards for commercial boilers, industrial water heating tanks, process vessels, and heavy catering equipment. Operating on 380V three-phase electrical supplies, it delivers high-efficiency thermal output for rapid fluid temperature recovery and continuous heat maintenance in demanding commercial operations. Constructed from premium CR316 (Grade 316) chrome stainless steel, this element demonstrates exceptional resistance to aggressive chemicals, high mineral content, severe hard water scale, and pitting corrosion under continuous submersion. Equipped with a standard 1.5 inch threaded screw plug, it provides a pressure-tight and leak-proof seal for high-duty immersion applications.
Technical Specifications: Brand: SERN Product Type: Industrial Boiler Screw Plug Immersion Element Power Rating: 4.5 kW (4500W) Operating Voltage: 380V (Three-Phase) Body Material: CR316 Grade Chrome Stainless Steel (Chemical & Marine Grade) Thread Size: 1.5 Inch BSP Threaded Screw Plug (1 1/2") Terminal Connection: Heavy-Duty Threaded Electrical Terminals with Brass Hardware Applications: Commercial steam boilers, industrial water tanks, brewing vessels, chemical heating tanks, and heavy-duty calorifiers
Advantages: Built with genuine SERN quality engineering for maximum industrial endurance and heavy continuous operation. High 4.5kW thermal output provides accelerated heating performance for large volume fluid tanks. Premium CR316 chrome stainless steel offers superior corrosion and chemical resistance compared to standard metals. Standard 1.5 inch brass screw plug allows direct installation into industrial tank bosses and boiler sockets. Engineered for reliable 380V three-phase power distribution, reducing line current per phase. Heavy-duty terminal construction protects electrical connection points against thermal degradation.
Disadvantages: Thread specification (1.5 inch BSP) and internal vessel immersion depth must be verified prior to fitting. Designed strictly for liquid immersion; running the element dry will cause immediate burn-out. High-voltage 380V three-phase installation must be carried out by a certified industrial electrician.