Schneider Electric M9F22150 is a single-pole Thermomagnetic circuit breaker from the Multi9 family (C60SP) rated for 50 A at 277 V AC. It uses a C-curve trip characteristic for predictable overload and short-circuit protection and provides a high breaking capacity of 10 kA under UL 1077 and IEC/EN 60947-2 (regionally, some listings may specify 5 kA). This compact MCB is designed for standard panelboard enclosures where 1P protection is required in 277 V systems, making it suitable for commercial and light-industrial distribution.
