It combines a circuit breaker and overload relay in one device, providing short-circuit and overload protection for motors up to 0.09 kW at 400 V. The continuous current rating is 0.32 A, and the trip class is CLASS 10, meaning it will trip within 10 seconds at 7.2× the set current — standard for protecting standard induction motors during startup. Breaking capacity is 100 kA at 240 V, 400 V, 500 V, and 690 V AC — this is the maximum fault current it can safely interrupt without welding contacts or rupturing. At 690 V rated insulation voltage, it covers most industrial supply voltages up to 690 V line-to-line.
Screw-type terminals for the main current circuit accept solid or stranded conductors: 2× (1…2.5 mm²) or 2× (2.5…6 mm²). AWG equivalents are 2× (14…10). No auxiliary contacts included (0 for auxiliary contacts), but an auxiliary switch option exists in the series if needed.
Shock resistance is 25 g for 11 ms, which covers most industrial vibration environments. Power dissipation at AC in hot operating state is 5.5 W total, 1.8 W per pole. Surge voltage resistance is 6 000 V. The rated switching frequency at AC-3 maximum is 15 operations per hour — adequate for typical motor start applications but not for high-cycling duties like rapid reversing.