The company Brown, Boveri & Cie (BBC), now known as ABB, patented the miniature circuit breaker in 1927. Designed by Heinrich Schachtner, this version found rapid use in the rising electrification of ...

Gladiator miniature circuit breakers offer optimum and efficient protection for branch and control circuits up to 63 amps. The Gladiator GMCBU series is available with B, C, or D trip characteristics ...