Fan Forced Electric Unit Heater, Wall & Ceiling, 3 Phase, 480VAC, 20kW, 21-3/4 in H, 19 in W

Units Mount Either Horizontal or Vertical. Applications: Factories, Warehouses, Garages, Stores, Shipping Rooms, Power Stations, Aircraft. Can Be Used for Primary, Supplementary, Spot, or Dual-System Heating. Wide Range of Optional Control Kits are Field Installable, Increasing The MUH Adaptability to The Specification Market. 3kW to 50kW Heating Output Made From Heavy Gauge Die Formed Steel Housing. Advanced Pull-Through Air Flow Design Draws Air Across Heating Element for More Even Air Distribution and Cooler Element Operation. Branch Circuit Fusing (When Required). Completely Enclosed Fan Motor. 1 or 3-Phase Wiring On 5 to 10 kW 208/240V And 15 kW 208V Units (Field Interchangeable). Aluminum-Finned, Copper Clad Steel Sheath Heating Element Has Longer Useful Life Because of Cooler Sheath Temperature And Faster Heat Dissipation. 24V Control Transformer Standard On Most Models Which Provides A Safer and More Accurate Means of Temperature Control. 3 kW And 5 kW 208-277V, Have Line Voltage Controls As Standard (24V Control Available On Made-To-Order Basis). Automatic Reset Linear Thermal Cut-Out, Capillary Type Provides Protection Over Entire Length of Element Areas (Manual Reset Protection Available On Made-To-Order Basis). 2-Speed Fan Selector Switch (25 kW to 50 kW Models). Fan Delay Feature Eliminates Cold Drafts. Element Heats Up Before Fan Cuts In, Then Fan Continues To Distribute Heat After Element Shuts Off. Individually Adjustable Discharge Lowers to Control Air Flow. Choice of Optional Diffusers for Variety of Air Patterns, Maximizing Heat Concentration and Coverage In Vertical Position. Meets All UL, NEC, And OSHA Requirements.