The Siemens SIRIUS 3RV2 Circuit breaker size S00 for the reliable protection of transformers against short-circuit and overload. Thanks to their low heat loss, the compact and climate-resistant circuit breakers are optimized for use in load feeders, and also for IE3/IE4 motors, of course, and equally for the switching of direct current. Worldwide approvals (e.g. IEC and UL/CSA) and applications in hazardous areas (ATEX or IEC Ex) are a matter of course. Device versions are available for motor protection (also with overload relay function), plant protection, short-circuit protection of starter combinations, transformer protection, as main and EMERGENCY OFF switches and for use in IT networks. The 3RV2 motor starter protectors replace the well-proven 3RV1 series. The use of different energy infeed options, such as the associated SIRIUS 3RV29 infeed system, considerably reduces the main circuit wiring.

Simple, efficient and always up to date - SIRIUS modular system
Available with screw or spring-type terminals
Fast, maintenance-free and vibration-proof connection
Integral auxiliary switch