Motor Protection Circuit Breaker — SIRIUS 3RV2011-1GA25-ZW97
It is part of the SIRIUS family, the standard modular component system for motor feeders in industrial control panels. This variant carries a continuous current rating of 6.3 A at 480 V and 600 V, and delivers a short-circuit breaking capacity of 100 kA at both 240 V and 400 V — sufficient for high-fault installations like large MCCs or distribution boards.
Any mounting position is acceptable — no derating for horizontal or vertical orientation. The spring-loaded terminals (cage clamp) accept 2× 0.5…2.5 mm² solid or stranded conductors, saving wire-prep time compared to screw terminals. Dimensions are 45 mm wide × 106 mm high × 97 mm deep. The 45 mm width occupies two standard module spaces on the DIN rail.
For gL/gG fuse backup at higher voltages, the maximum permitted fuse rating is 50 A at 400 V, 40 A at 500 V, and 35 A at 690 V. This allows Type 2 coordination with a standard fuse upstream.