Main contactor Siemens SIRIUS 3RT20271BB40
The compact power contactor 3RT20271BB40 from Siemens is offered for the performance range up to 15 HP at AC-3/480 V. The SIRIUS power contactor 3RT20271BB40 from Siemens uses a control supply voltage of 24 V DC and features one NO and one NC contact as auxiliary contacts as well as a practical screw-type connection. In size S0, the power contactor 3RT20271BB40 is suitable for all load feeders with the circuit breakers 3RV2021 and 3RV2321. The power contactor 3RT20271BB40 is used in automation and control technology, particularly to control motors and switch on electrical heating systems.