Circuit breaker size S0 for motor protection, CLASS 10 A release 3.5...5 A N release 65 A screw connection. Standard switching capacity of the SIRIUS 3RV2 circuit breakers for motor protection ensures safe disconnection in case of short circuits and protects consumers and installations from overload, as well as providing safe separation of the system from the power supply. The compact and climate-resistant circuit breakers are optimized for use in consumer branches due to their low heat dissipation, and are naturally suitable for IE3/IE4 motors and equally for switching direct current. Worldwide approvals and applications in explosion-hazardous environments are a given. Device variants are available for motor protection (also with overload relay function), system protection, short-circuit protection for starter combinations, transformer protection, as main and emergency stop switches, and for use in IT networks. They come with screw or spring terminals for quick, maintenance-free, and vibration-resistant connections, and optionally with built-in auxiliary switches. The comprehensive accessories, such as auxiliary switches, auxiliary releases, signaling switches, etc., are uniform across all sizes. The use of various power supply options, such as the associated power supply system SIRIUS 3RV29, 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.