Patent ID: 6989996

Claim:
A circuit breaker panel for hazardous environments, comprising: a housing having an internal cavity and an access opening through which the internal cavity is accessed; a closure door covering the access opening of the housing, the closure door being held in a closed positioned by at least one and not more than six fasteners, whereby access is obtained to the internal cavity through the access opening by releasing the at least one and not more than 6 fasteners and opening the closure door; and a plurality of electrical components positioned in first and second spaced apart vertical stacks within the internal cavity of the housing, some of the electrical components being circuit breakers, each of the circuit breakers and all other arcing and sparking electrical components being enclosed in its own individual self contained class 1, division 2 explosion proof casing with only a circuit breaker switch projecting through a front face of the explosion proof casing substantially normal thereto so as to be accessible by an individual such that the circuit breaker switch of each self contained explosion proof casing is prevented from interfering with the close side by side abutting relationship of adjacent self contained explosion proof casings in the first and second spaced apart vertical stacks.