MARLEY MUH0521 5KW AT 240V (3.7KW AT 208V) 1-3PH HORIZONTAL/DOWNFLOW UNIT HEATER

MARLEY MUH0521 5KW AT 240V (3.7KW AT 208V) 1-3PH HORIZONTAL/DOWNFLOW UNIT HEATER - Industrial Unit Heater The MARLEY MUH0521 is a modular unit heater designed for industrial and commercial applications, providing efficient and reliable heating solutions for warehouses, factories, garages, shipping docks, stairwells, power stations, and mechanical rooms. This unit heater supports single-phase and three-phase power configurations and is suitable for horizontal or downflow mounting to deliver targeted airflow where needed. It is engineered for use by electrical distributors and switchgear suppliers seeking robust wire and cable-compatible heating equipment for demanding environments. Specifications Power: 5 kW at 240 V / 3.7 kW at 208 V Voltage: 208/240 V Phase: 1-3 phase Airflow (CFM): 350 Dimensions (HxWxD): 16" x 14" x 7 1/2" (406.4 mm x 355.6 mm x 190.5 mm) Weight: 27 lbs (12.2 kg) Temperature Range: 40°–90°F Control Voltage: 208/240 V Heating Element: Steel sheath clad in copper with aluminum fins Mounting: Horizontal or downflow (vertical) with adjustable louvers Features Advanced Pull-Through Airflow Design: Draws air across the heating element for cooler operation and even heat distribution. Safe Operation: Equipped with a linear thermal cutout for automatic protection along the entire heating element length and a 24V control transformer for safe temperature adjustment. Precise Airflow Positioning: Individually adjustable louvers direct heat where needed; venturi outlet allows vertical mounting. Durable Heating Element: Steel sheath heating element clad in copper and outfitted with aluminum fins to enhance safety and accelerate cooling. Self-Contained Installation: No piping, flues, valves, or traps required for installation. Flexible Wiring: Factory wired for single-phase power; field convertible to three-phase with simple reconnection instructions. UL Listed for Safety Compliance. Downloads & Links Spec Sheet Spec Sheet Spec Sheet