Circuit breaker size S0 for motor protection, CLASS 10 A trip unit 5.5...8 A N trip unit 10-4 A screw connection. Standard switching capacity of SIRIUS 3RV2 circuit breakers for motor protection to ensure safe disconnection in case of short circuits and to protect consumers and installations from overload, as well as to safely isolate the installation from the grid. The compact and climate-resistant circuit breakers are optimized for use in consumer branches due to their low heat dissipation, of course also 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), plant protection, short-circuit protection of starter combinations, transformer protection, as main and emergency stop switches, and for use in IT networks. They come with screw or spring-loaded connections for quick, maintenance-free, and vibration-resistant connections, and optionally with an integrated auxiliary switch. The comprehensive accessories, such as auxiliary switches, auxiliary trip units, 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 3RV1 series. Simple, efficient, always up to date - the SIRIUS system modular design.