Motor protection circuit breaker — SIRIUS 3RV1021-4BA10-ZI41W96
It is rated for 20 A continuous current and delivers 7.5 kW at 400 V AC, with a trip class 10 characteristic — meaning it will trip within 10 seconds under a locked-rotor condition, which is standard for most general-purpose induction motors driving pumps, fans, and conveyors.
Breaking capacity and fault handling
This breaker delivers a high breaking capacity: 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, so if that's required, an external ground-fault relay or a different variant would be needed.
Main circuit terminals accept solid or stranded conductors: 2x (1 … 2.5 mm²) or 2x (2.5 … 6 mm²) per pole, AWG 2x (14 … 10). Screw-type terminals. Dimensions: 45 mm wide, 97 mm high, 96 mm deep. Zero clearance required at the sides or rear for ventilation (0 mm backwards, 0 mm at the side).