Siemens 3RV2926-0BA00 Door-Coupling Rotary Mechanism

Siemens 3RV2926-0BA00 is an IP64-rated door-coupling rotary operating mechanism for circuit-breaker assemblies in the S00 through S3 size range, with a 130 mm shaft length and a black finish. The unit comprises a lockable rotary actuator, a removable door coupling, an extension shaft, and a joining piece that connects to the switch mechanism, and it can be padlock-locked in the OFF position with up to three padlocks. The standard variant is documented as 3RV2926-0B, with 3RV2926-0BA00 commonly cataloged by distributors, and Siemens notes a successor model 3RV2926-1B as part of a phase-out. It is designed to mount on the door to enable exterior actuation of the circuit-breaker while maintaining IP64 sealing against dust and water splashes.