Abstract: A circuit breaker mounting bracket is comprised of a generally upright support member, a base member extending generally perpendicularly from a bottom of the support member, a flange depending from a distal end of the base member at an angle less than 90.degree., and a brace member depending obliquely from the back of the support member. The flange is adapted to be secured to a support surface, such as a deck within an air conditioning or furnace cabinet. The brace member and the flange cooperate to maintain the bracket in a rigid, upright position within the cabinet. The bracket includes a din rail comprising two generally L-shaped flanges integrally formed with the support member, whereby one or more circuit breakers are mountable in a fixed position relative to the bracket. A C-shaped channel is formed on the support member between the L-shaped flanges for receiving two retaining members, which inhibit lateral movement of the circuit breaker(s) mounted on the bracket.