Motor protection circuit breaker for 25 A motor circuits
The CLASS 10 curve is the most common choice for standard squirrel-cage motors; it coordinates well with contactors in a motor starter assembly.
Breaking capacity and fault clearing
The interrupting ratings are voltage-dependent: 100 kA at 240 V AC, 50 kA at 400 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC. Ground fault detection is not included (no); that requires an external module or a separate ground-fault relay.
Each pole accepts 2 conductors: solid or stranded 1 … 2.5 mm², plus a second pair of 2.5 … 6 mm². For AWG, that's 2x (14 … 10) for the main contacts. The dual-terminal design allows daisy-chaining power through the breaker without extra terminal blocks — common in motor starter wiring where the line side feeds the contactor coil.
Shock resistance is rated at 25 g for 11 ms, typical for industrial vibration environments.