EXAIR HazLoc Cabinet Coolers circulate 20°F (-7°C) air inside the enclosure to prevent high temperature faults. They mount in a standard electrical knockout while keeping the NEMA 4 or 4X rating of the enclosure. Cabinet Cooler Systems include an auto drain filter separator to ensure no moisture passes to the inside of the electrical enclosure. An optional thermostat control minimizes compressed air use and keeps the enclosure at ± 2ºF of the setting.