Phase-out notice and successor
The 3RV2926-0B is in product phase-out. The official successor is 3RV2926-1B, which carries a drilling pattern change — the panel cutout or mounting hole layout will need to be updated when switching to the new variant.
This is a door-coupling rotary operating mechanism from the SIRIUS family, designed to mount on the enclosure door and mechanically link to the circuit breaker handle inside. It lets an operator open or close the breaker from outside a closed panel without exposing live parts. It is suitable for circuit breakers in sizes S00, S0, S2, and S3 — covering a wide range of motor-protective and molded-case breakers in the SIRIUS line. The 130 mm shaft length bridges the distance from the door to the breaker's rotary handle. The IP64 rating means it seals against dust ingress and splash from any direction — fine for a control-room or dry-area enclosure door, but not for washdown zones where IP65 or higher would be needed.
Rated for up to 15 operating cycles per hour — this is a manual door interlock, not a high-speed switching device. It is intended for occasional access, not frequent motor starts. Overall dimensions of 66 mm wide by 66 mm high by 50 mm depth (130 mm shaft length) — the shaft length is the critical fit dimension for door thickness and standoff. Ensure the panel door-to-breaker distance does not exceed 130 mm.