1SYS272012R0405

The ABB 1SYS272012R0405 (SB202M-B40) is a high-quality double-pole miniature circuit breaker designed to provide dependable protection against electrical overloads and short circuits. Manufactured by ABB, this MCB belongs to the System pro M compact SB200M series and features a rated current of 40A, B-curve tripping characteristics, and a rated short-circuit breaking capacity of 10kA. Its double-pole configuration provides thermal-magnetic protection on both poles, enabling simultaneous disconnection of two conductors during manual switching or automatic tripping. The breaker helps protect electrical wiring, distribution circuits, and connected equipment against excessive current and short-circuit faults.