Siemens 3RV1946-3AB4 Remote Control Mechanism

Siemens 3RV1946-3AB4 Remote Control Mechanism is a remote motorized operating mechanism used to actuate Sirius 3RV1 circuit-breakers from a distance. The AB4 suffix denotes a 24 V DC control variant in the S3 size family, designed for integration in compact switchgear where remote operation is required. The unit provides control cabling via plug-in connectors with screw terminals, simplifying wiring inside control cabinets. As part of Siemens' Sirius protection equipment lineup, it is intended for use with 3RV1 devices to enable automated remote opening and closing of the protective switch, improving operator safety and enabling integration with automation sequences in distribution boards, motor control centers, and fault-clearing schemes. The 3RV remote-control mechanism family is documented in Siemens IC10 catalogs and accompanying product sheets, confirming its role as a dedicated driver for remote operation. When selecting the 3AB4 variant, ensure compatibility with the target 3RV1 breaker model and the DC control supply in your control system.