The Siemens SIRIUS 3RV1031-4HA10-ZW96 is a 3-pole motor protection circuit breaker rated for 50 A continuous current, with a Class 10 trip characteristic and a rated operational voltage of 690 V AC-3. It is designed for screw and snap-on mounting onto a 35 mm DIN rail per EN 50022, making it a direct fit for standard industrial control panels. Rated at 22 kW at 400 V, this breaker provides phase failure detection and offers breaking capacities of 100 kA at 240 V AC, 50 kA at 400 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC. The IP20 protection on the front means it is safe for use in enclosed panels where personnel contact with live parts is prevented by the enclosure.
Sourcing & Lifecycle
The product carries a substance prohibitance date of 07/01/2006, confirming RoHS compliance from that date forward. The manufacturer provides a declaration of conformity covering the applicable standards (IEC/EN 60947) and the CE mark for the European market.
Integration & Mounting
Mounts directly onto 35 mm DIN rail per DIN EN 50022 via the integrated snap-on mechanism; screw fixing is also permitted. The mounting position is any, which simplifies layout in crowded enclosures. Dimensions are 55 mm wide, 140 mm high, and 149 mm deep. Zero mm clearance is required at the back and at the sides, so it can be placed flush against the back panel or adjacent components without derating. Main circuit terminals accept solid conductors 2x (0.75 to 16 mm²) and stranded conductors 2x (0.75 to 25 mm²) or 1x (0.75 to 35 mm²). Auxiliary and control circuit terminals are screw-type as well. The box terminal design provides a reliable connection for motor power wiring.
Electrical & Environmental Ratings
Power dissipation in the hot operating state is 29 W total, or 9.7 W per pole. This figure is relevant for enclosure thermal calculations, especially when multiple breakers are ganged. Operating temperature range is -20 to +60 °C; storage and transport range is -50 to +80 °C. Shock resistance is rated at 25g for 11 ms, sufficient for most industrial machinery and conveyor applications. The maximum operating frequency under AC-3 duty is 15 operations per hour, and the rated surge voltage withstand is 6000 V. No ground fault detection is built in; phase failure detection is standard.
Auxiliary Switch & Extension
The product extension auxiliary switch is available (Yes), meaning the breaker accepts add-on auxiliary contact blocks for status feedback to a PLC or safety relay. This is a standard feature on the SIRIUS 3RV1 platform.