The Siemens 3RV2926-0C is a SIRIUS door-coupling rotary operating mechanism designed for EMERGENCY-OFF applications on circuit breakers of sizes S00, S0, S2, and S3. It uses a 130 mm shaft to couple the breaker handle through an enclosure door, with an IP64 seal keeping washdown and dust out of the panel interior. This is the -0C variant — currently in phase-out, with the successor 3RV2926-1C carrying a different drilling pattern, so any panel cutout or door prep will need updating when you switch over.
The 66 mm width and 66 mm height match the standard S00/S0/S2/S3 breaker face, so it sits flush on the door without extra clearance. The 50 mm depth is the mechanism body behind the panel — the 130 mm shaft length is what reaches from the door to the breaker, so verify your enclosure depth against that figure. Mounting position is any orientation, fixed via screw fixing, so it's straightforward to retrofit into an existing door cutout as long as the drilling pattern matches the -0C layout. The IP64 seal means it's fine for general industrial environments with dust and splash; not rated for hose-down or submersion.
The 3RV2926-0C is flagged as product phase-out with a listed successor, 3RV2926-1C. The key difference is a drilling pattern change — the -1C won't drop into the same door cutout without modification. The operating frequency is rated at 15 operations per hour, which is typical for an emergency-stop mechanism — not a cycling actuator.
The part carries a substance prohibitance date of 07/01/2006, indicating RoHS compliance from that date onward.