The Siemens 3RV6902-1DP0 is a SIRIUS shunt release designed to trip a motor circuit breaker remotely on command — the kind of part you wire into an E-stop string or a PLC-driven safety shutdown so the breaker opens without someone standing at the panel. It mounts directly onto the breaker's DIN-rail clip, so it adds no extra footprint in the enclosure; the 19 mm width keeps it within the S00/S0 frame profile.
The control supply is AC 210...240 V at 50 or 60 Hz — that is the voltage it expects across the trip coil to release the breaker latch. The same part also accepts DC 190...330 V for a 5-second duty cycle, which covers installations where the safety circuit runs on a battery-backed DC bus. Maximum break time is 20 ms — fast enough to clear a fault before downstream contactors weld. The screw-type terminals accept standard control wiring; no special crimp tooling needed for panel assembly.
This shunt release snaps onto the left or right side of a SIRUS 3RV1 motor circuit breaker in frame sizes S00 or S0. The 68 mm depth and 90 mm height match the breaker profile, so the assembly stays within the same DIN-rail envelope. No extra mounting plate or bracket required — just clip it on and wire the two screw terminals to the trip signal. That covers most indoor industrial enclosures, including unheated warehouses in temperate climates.
RoHS compliance is declared with a substance prohibition date of May 1, 2012, which aligns with the EU RoHS recast (2011/65/EU). No separate UL or CSA listing appears in the spec record; the part carries CE marking as part of the Siemens SIRIUS system.