• Single phase heaters available in all common voltages from 120V to 600V. • 11 Gauge perforated steel housing powder coated with textured ivory finish. • Tamper proof left side control panel houses built-in single pole thermostat - range 40OF-110OF and disconnect switch. Thermostat on 120V-277V units is line voltage and low voltage (24V) on 346V-600V units. • Linear limit type thermal overload with automatic reset. • Tamper proof fasteners • Stainless steel element with Aluminum fins. Note: Not for residential applications.