1SYS271112R0255

ABB SB201M-B25 NA Miniature Circuit Breaker, Part Number 1SYS271112R0255, a reliable low-voltage electrical protection device designed for residential, commercial and industrial electrical distribution applications.

The ABB SB201M-B25 NA belongs to ABB's System pro M SB200M series of miniature circuit breakers and is designed to provide protection against electrical overloads and short-circuit faults. Featuring a rated current of 25 amperes, a single-pole plus neutral (1P+N) configuration, a B-curve tripping characteristic and a 10kA short-circuit breaking capacity, this MCB is suitable for correctly designed single-phase electrical systems.

The single-pole plus neutral configuration provides thermal-magnetic overcurrent protection in the phase conductor and coordinated switching of the neutral conductor. This arrangement allows simultaneous phase and neutral disconnection during manual switching or protective tripping, helping improve circuit isolation and electrical safety.