The Siemens 3RV1926-0LA00-0FJ0 is a door-coupling rotary mechanism for an emergency-stop (E-Stop) actuator. It bridges the panel door to the disconnect switch or circuit breaker inside, letting you open/close the main disconnect from outside the enclosure without exposing live parts. The IP55 rating means the mechanism itself is sealed against dust jets and low-pressure water — suitable for washdown or outdoor environments where the panel door sees splashing or hose-down cleaning.
Sizing and shaft length
This variant carries a 330 mm shaft with a support bracket from Fa. Benedikt & Jaeger. It fits the S0, S1, S2, and S3 frame sizes of Siemens 3RV2 and 3RV20 circuit breaker / disconnect families. The shaft length determines the distance between the door-mounted rotary handle and the breaker body — 330 mm covers deeper enclosures where the disconnect sits well back from the door plane.