What It Is and Where It Fits
The Siemens 3RV1923-1FA00-0FJ0 is a moulded-plastic IP55 enclosure with an integrated emergency-stop rotary actuator, sized for a circuit breaker in the S0 frame. It includes N and PE terminals and has a construction width of 54 mm.
Deployment Context
This enclosure mounts directly to the S0 circuit breaker, creating a sealed, lockable disconnect point with an emergency-stop function. The IP55 rating means it handles dust and water jets — suitable for washdown areas or outdoor panels where the breaker needs protection from the environment.