Shunt trip for S00–S3 breakers
The Siemens 3RV1902-1DB00-0FQ0 is a shunt trip accessory for SIRIUS 3RV circuit breakers in frame sizes S00 through S3. It's the piece that gives a remote trip capability — energize the coil and the breaker opens, no manual intervention needed. The coil sees 20–24 V AC at 50/60 Hz for continuous duty (100% ED), or 20–70 V AC/DC for a 5-second rated duty cycle (5 S ED). That dual-range AC/DC input makes it flexible for control circuits that might be 24 V DC or 48 V AC depending on the panel design.