Motor protection circuit breaker, 45 mm width, 100 kA SCCR
The part detects phase failure as standard, with no ground-fault detection built in. Rated voltage covers 20 to 690 V AC. Motor horsepower ratings: 0.33 hp at 110/120 V, 1 hp at 230 V, 2 hp at 200/208 V and 220/230 V, 5 hp at 460/480 V. At 480 V the continuous current rating is 8 A; at 600 V it is also 8 A. The maximum switching frequency at AC-3 duty is 15 operations per hour. The backup fuse ratings for this breaker: gL/gG 50 A at 400 V, gL/gG 40 A at 500 V, and gL/gG 35 A at 690 V.
Minimum clearance requirements: 50 mm upwards, 50 mm downwards, 30 mm at the sides, and zero forwards or backwards — so it can sit flush against a panel backplate or enclosure door. Terminals are screw-type for the main current circuit, accepting 2x (0.75 to 2.5 mm²) solid or stranded, or 2x 4 mm². Main contact screws are M3. The overall dimensions are 97 mm high, 45 mm wide, and 97 mm deep.