Motor protection circuit breaker — SIRIUS 3RV2031-4EA10-ZW96
SIRIUS motor protection circuit breaker with Class 10 trip characteristic. Breaking capacity is 100 kA at 240 V, 30 kA at 400 V, and 2 kA at 690 V, so the part handles high fault currents on low-voltage distribution without cascading upstream breakers. Phase failure detection is built in, which means the breaker trips on a lost phase — critical for preventing single-phasing damage on delta-connected motors. Mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 60715, with any mounting position allowed.
DIN-rail fit and clearance
Dimensions are 55 mm wide, 140 mm high, 149 mm deep — a standard 3-module-wide footprint that fits alongside contactors and overloads in a motor control center row. Required clearances: 50 mm above and below, 10 mm to the side, 0 mm forward and backward — so it can be stacked tight against a panel backplane or busbar system. Screw-type terminals on the main circuit accept 2× (1–25 mm²) or 1× (1–35 mm²) solid or stranded copper, with M6 terminal screws.
Lifecycle and sourcing
Operating temperature range is -20 to +60 °C, with storage and transport range from -50 to +80 °C.
Motor horsepower and voltage coverage
Rated motor output: 3 hp at 110/120 V, 5 hp at 230 V, 10 hp at 200/208 V, and 10 hp at 220/230 V — covering common North American and IEC motor voltages. Rated operational voltage spans 20 to 690 V.