The Siemens 3RV1926-0BA00-0FJ0 is a door-coupling rotary mechanism rated IP65, designed for circuit-breaker sizes S0 through S3, with a 130mm shaft length. It allows the breaker operating handle to be mounted on the enclosure door while the breaker itself is DIN-rail mounted inside the panel — a standard arrangement for motor starters and distribution boards where the door must seal against washdown or dust.
The lifecycle stage for this order code is listed as current, meaning it remains in Siemens' active catalog and is not subject to a last-time-buy or discontinuation notice.
What the IP65 Rating Means for Fit
That is the deciding factor for food-and-bev lines, chemical processing panels, or outdoor installations where a standard IP20 rotary handle would let moisture track into the breaker compartment. The 130mm shaft length accommodates standard enclosure depths; verify the door-to-DIN-rail distance against your panel layout before specifying.