The Siemens SIRIUS 3RV1011-0HA10-ZW96 is a motor protection circuit breaker designed for Class 10 trip characteristics, meaning it will trip within 10 seconds at 7.2x the thermal setting. This is the standard protection for standard induction motors starting under load — pumps, conveyors, compressors. It includes phase failure detection, which opens the circuit if one phase drops out, preventing single-phasing damage.
Dimensions are 45 mm wide, 90 mm high, 75 mm deep. Requires 20 mm clearance above and below, 9 mm at the sides, zero forward or backward clearance. The screw-type terminals accept 2x (0.5...1.5 mm²) or 2x (0.75...2.5 mm²) solid or stranded wire, terminated with M3 screws on the main contacts.
Ratings and Application
Rated operating voltage range is 20...690 V. Breaking capacity is 100 kA at 240 V, 400 V, 500 V, and 690 V AC. At 230 V, the motor power rating is 0.1 kW. The maximum switching frequency at AC-3 duty is 15 operations per hour.