• Circuit-breakers SIRIUS 3RV10, 3RV20 and 3RV11, 3RV21 The clear, structured range is electrically, mechanically and optically harmonized to the other families of SIRIUS devices - contactors,soft starters and overload relays. Furthermore, the four sizes cover a current range up to 100 A. This corresponds to a power range up to 45 kW at 400 V AC.

  • Circuit-breakers SIRIUS 3RV13 The 3RV13 motor starter protectors for starter combinations in sizes S0, S2 and S3 provide short-circuit protection with the help of a contactor and overload relay combination.

  • Circuit-breakers SIRIUS 3RV14 for transformer protection 3RV14 motor starter protectors in sizes S0 and S2 for protecting transformers are therefore fitted with electronic trip units which are permanently set in the factory to a value equivalent to 20 times the rated current.

  • Accessories for 3RV Circuit-breakers The 3RV1 motor starter protectors have three main contact elements. In order to achieve maximum flexibility, auxiliary switches, alarm switches, auxiliary trip units and isolator modules can be supplied separately.