The Chromalox model 4477 Panel is excellent
for power control in a hazardous environment.
The enclosure contains a single 45 or 75 amp
3 pole contactor, a separate thermal magnetic
circuit breaker, optional temperature and
overtemperature control, an optional window
for viewing the controller, and a door mounted,
illuminated reset pushbutton for the overtemp
circuit. NEMA 7/4 rating of the enclosure is
suitable for Class I, Div. 1 & 2, Group B, C & D.