The Siemens SIRIUS 3RV2032-4WA15 is a motor protection circuit breaker designed for 52 A rated current at 480 V and 600 V, with a 50 kA breaking capacity at 400 V. It belongs to the SIRIUS product brand and is designated for motor protection, including phase failure detection.
Any mounting position is permitted, which simplifies panel layout. Dimensions are 149 mm deep, 55 mm wide, 140 mm high — the 55 mm width is a standard 3-module footprint on the DIN rail. These are the minimum air gaps for arc quenching and thermal dissipation — respect them in dense panels.
Electrical Ratings and Breaking Capacity
Breaking capacity varies by voltage: 100 kA at 240 V, 50 kA at 400 V, 5 kA at 500 V, 4 kA at 690 V. Rated motor currents: 52 A at both 480 V and 600 V, 10 hp at 230 V. The 52 A rating at 480 V is the key selection parameter for North American 480 V motor circuits. Rated operational voltage range is 20 to 690 V, covering most low-voltage industrial systems worldwide.
Environmental and Connection Details
Main contact terminals accept M6 bolts; solid or stranded wire 2×(0.5 to 1.5 mm²) or 2×(0.75 to 2.5 mm²).