Motor protection circuit breaker, SIRIUS, 3RV2011-0GA25-ZW97
The unit provides phase failure detection, so a lost phase on the line side will cause a trip, preventing single-phasing damage to the motor. The main circuit connections use spring-loaded terminals (cage clamp), accepting 2× (0.5... 2.5 mm²) solid or stranded conductors — no screw torque to verify, which speeds panel wiring.
Integration notes
The spring-loaded terminals accept 2× (0.5... 2.5 mm²) conductors — strip length per manufacturer recommendation for cage-clamp terminations. The unit occupies 45 mm of DIN rail width; with the required 50 mm clearance above and below, plan for roughly 145 mm of vertical panel space per breaker row. The temperature compensation is active across the full operating range, so the thermal trip curve stays accurate in warm enclosures.