Siemens 3RV2021-1CA20

Circuit breaker size S0 for motor protection, CLASS 10 A release 1.8...2.5 A N-release 33 A spring terminal connection standard switching capacity. The SIRIUS 3RV2 circuit breakers provide motor protection for safe disconnection in case of short circuits and protect consumers and installations from overload, as well as ensuring safe separation of the system from the grid. The compact and climate-resistant circuit breakers are optimized for use in consumer branches due to their low heat dissipation, and they are naturally suitable for IE3/IE4 motors and for switching direct current. Global approvals (e.g., IEC and UL/CSA) and applications in explosion-hazardous environments (ATEX or IEC Ex) are standard. Variants are available for motor protection (also with overload relay function), system 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 terminal connections for quick, maintenance-free, and vibration-resistant connections, and optionally with built-in auxiliary contacts. The comprehensive accessories, such as auxiliary contacts, 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 3RV1 series. Simple, efficient, always up-to-date - the SIRIUS system modular concept.