Circuit breaker size S0 for starter combinations with a rated current of 22 A and a tripping current of 286 A. The spring-loaded connections and the standard switching capacity of the SIRIUS 3RV2 circuit breaker provide reliable protection for consumers in case of short circuits as well as safe disconnection from the power supply. The compact and climate-resistant circuit breakers are optimized for use in consumer branches due to their low heat dissipation, making them suitable for IE3/IE4 motors and for switching direct current.

Worldwide approvals, such as IEC and UL/CSA, as well as applications in explosion-prone environments (ATEX or IEC Ex) are standard. Device variants are available for motor protection (also with overload relay function), plant protection, short-circuit protection of starter combinations, transformer protection, as main and emergency stop switches, and for use in IT networks.

The circuit breakers are available with screw or spring-loaded connections for a quick, maintenance-free, and vibration-resistant connection, optionally with an integrated auxiliary switch. The comprehensive accessories, such as auxiliary switches, auxiliary relays, and signaling switches, are uniform across all sizes. The use of various energy supply options, such as the associated SIRIUS 3RV29 supply system, significantly reduces the main circuit wiring.

The 3RV2 circuit breakers replace the proven series 3RV1. Simple, efficient, always up to date - the SIRIUS system modular concept.