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Siemens 3RV2922-2CP0 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2922-2CP0 SIRIUS Undervoltage Release, 230VAC 50/

MPN3RV2922-2CP0
Active

Siemens SIRIUS 3RV2922-2CP0 undervoltage release, 230 V AC/50 Hz, 240 V AC/60 Hz, with 2 NO leading auxiliary contacts, spring-type terminals, for 3RV2 circuit breakers sizes S00, S0, S2, S3.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RV2922-2CP0 — Identification
ParameterValue
SeriesSIRIUS
Product designationundervoltage release
Frame sizeS00, S0, S2, S3
3RV2922-2CP0 — Electrical
ParameterValue
Rated voltage690 V
3RV2922-2CP0 — Mechanical
ParameterValue
Height90 mm
Width18.5 mm
Depth68 mm
Mounting methodsnap-on mounting
3RV2922-2CP0 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
3RV2922-2CP0 — Specifications
ParameterValue
Design Of The Productwith 2 auxiliary contacts

Product details

The Siemens SIRIUS 3RV2922-2CP0 is an undervoltage release for the 3RV2 motor circuit breaker family. It drops the breaker when control voltage falls below the dropout threshold. The 50/60 Hz frequency range means it works on either grid without a separate transformer tap. Snap-on mounting onto a DIN rail — no tools needed for installation. The 18.5 mm width and 68 mm depth fit into a crowded panel.

Integration with 3RV2 Breakers

This release clips onto the left side of any 3RV2 motor circuit protector in frame sizes S00, S0, S2, or S3. The 2 NO leading contacts close before the main contacts engage, giving the control system a status signal that the undervoltage coil is healthy before the motor can start.

MPN
3RV2922-2CP0