EEMAC 3R enclosure. Designed for standard mid-sized installations where a fall in outside temperature activates a parking lot load feeder contactor(s) or panel board. Galvanized body - ASA 61 grey hinged door. HOA selector for 100% on. Heavy duty contactors - 120V coil. Panel mounted sensing thermostat (adj. -30°F to 100°F) complete with stainless steel capillary cover. Siemens 'P1' bolt in circuit breaker panel.