Abstract: A front mount circuit breaker assembly for circuit breakers of different dimensions that are removably mounted to modular circuit breaker holder members. Elongated contacts extend from the terminals on the back of the circuit breakers to the front. The holder members have a through portion between the two ends. Below the two ends and inwardly, a supporting surface is defined for supporting electrical contacts where the distal ends of the elongated contacts are removably mounted to provide the electrical connection for the device. These connections have been brought to the front. The elongated contacts can be made of different dimensions that cooperate with those of the circuit breaker. The holder members are banked together and removably mounted over a cooperating longitudinal rib that is received within a bay cut out defined on the flat bottom wall of the holder members in one of the embodiments. Another embodiment includes outwardly extending flanges for ready mounting to a panel.