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Siemens 3RV1946-3AB4 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1946-3AB4 SIRIUS Motor Remote Operating Mechanism

MPN3RV1946-3AB4

Siemens SIRIUS, motor remote operating mechanism, for circuit-breakers S3, 24 V DC, standard design, screw fixing, 236 × 148 × 224 mm.

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

3RV1946-3AB4 — Identification
ParameterValue
SeriesSIRIUS
Product designationMotor remote operating mechanism
Frame sizeS3
3RV1946-3AB4 — Mechanical
ParameterValue
Height224 mm
Width148 mm
Depth236 mm
Mounting methodscrew fixing
Mounting positionany
3RV1946-3AB4 — Environmental
ParameterValue
Operating temperature-20 ... +70 °C
Storage temperature-50 ... +80 °C
3RV1946-3AB4 — Specifications
ParameterValue
Design Of The Productstandard

Product details

It mounts via screw fixing in any orientation, drawing 24 V DC control power (20.4...26.4 V range) to remotely open or close the breaker — useful when the panel door must stay closed or the breaker is in a hard-to-reach bay. The mechanism includes an interlock and can be locked in the OFF position, so it supports lockout/tagout procedures without needing a separate padlock hasp on the breaker itself.

Panel fit and operating limits

Footprint is 236 mm deep by 148 mm wide by 224 mm tall — confirm gland plate clearance before committing the panel layout, since the depth is deeper than a typical contactor. Screw-fixing to the mounting plate means no DIN-rail adapter; plan for four screw holes in the back panel. Rated for a maximum of 25 operations per hour with a 0.1 s pulse duration for switching on and a 2 s typical/maximum pulse duration. That limits it to occasional remote switching, not high-cycle jogging or rapid load shedding. Shock rated at 25g / 11 ms, so it holds up in mobile or vibrating installations. The 0 mm clearance requirements in all directions (upwards, forwards, backwards, downwards, at the side) mean the mechanism can be mounted flush against adjacent components — no mandatory air gap for cooling.

This order code is a phased-out product.

Frequently asked questions

Where can I buy 3RV1946-3AB4?

Through the independent surplus and new-old-stock channel. We source it to order against an RFQ; availability and current pricing are confirmed at quote time.

What is the control voltage for 3RV1946-3AB4?

24 V DC, with an operating range of 20.4 to 26.4 V DC.

Does 3RV1946-3AB4 have an interlock or lockable OFF feature?

Yes. It includes an interlock and can be locked in the OFF position, supporting lockout/tagout procedures.

MPN
3RV1946-3AB4