The Siemens 3RV2926-2B is a door-coupling rotary operating mechanism from the SIRIUS family, designed for heavy-duty operating conditions on circuit breakers of size S0. It mounts via screw fixing in any position and is rated for up to 15 operations per hour, making it suitable for manual disconnect and emergency-stop applications on panel doors where the breaker is mounted inside the enclosure.
The substance prohibitance date of 07/01/2006 indicates RoHS compliance for the original design; verify the successor's compliance documentation separately.
Dimensions: 78 mm depth, 75 mm width, 75 mm height, with a 300 mm length for the operating shaft. All clearance requirements (upwards, forwards, backwards, downwards, at the side) are 0 mm, meaning the mechanism sits flush against the breaker face. The standard design mates with S0-size Siemens circuit breakers via screw fixing.