It provides overload and short-circuit protection for motors up to 0.18 kW at 400 V, with a continuous current rating of 0.63 A and a Class 10 trip characteristic. This prevents nuisance tripping on startup while still protecting the motor winding. The unit includes phase failure detection, which disconnects the motor if one phase is lost — a common cause of single-phasing damage in three-phase motor loads.
Breaking capacity and short-circuit performance
Rated breaking capacity is 100 kA at 240 V, 400 V, 500 V, and 690 V AC — a flat high-fault curve that covers most industrial distribution panels without needing upstream current-limiting fuses.
Dimensions: 45 mm wide, 97 mm high, 96 mm deep. The 96 mm depth means it will clear most standard 120 mm deep enclosures without a sub-panel extension. Mounting position is any orientation; no derating required for side-by-side or inverted mounting. Front face is IP20 rated — touch-safe for panel installation, but not suitable for washdown environments without an additional enclosure.
Main current circuit terminals are screw-type, accepting solid conductors: 2× (0.5…1.5 mm²) and 2× (0.75…2.5 mm²). Stranded conductors: 2× (1…2.5 mm²) and 2× (2.5…6 mm²). This covers most motor feeder cables up to 6 mm². Auxiliary switch is transverse design, rated at 1 A at 24 V, 0.5 A at 230 V, and 0.15 A at 60 V — sufficient for signaling to a PLC input or contactor coil.
Shock resistance is 25g / 11 ms, suitable for machine-mounted applications with moderate vibration. Mechanical endurance of the main contacts is 100,000 operations typical; maximum switching frequency at AC-3 duty is 15 operations per hour.