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Siemens 3RV2032-4EA10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2032-4EA10 SIRIUS Motor Protection Circuit Breake

MPN3RV2032-4EA10
Active

Siemens SIRIUS 3RV2032-4EA10 motor protection circuit breaker, Class 10, 50 kA breaking capacity at 400 V, screw-type terminals, 55 mm wide, DIN rail mount.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RV2032-4EA10 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS2
3RV2032-4EA10 — Electrical
ParameterValue
Rated operational current (Ie)32 A
Rated voltage20 ... 690 V
Rated voltage, AC-3 (max.)690 V
Rated frequency50 ... 60 Hz
Rated insulation voltage (Ui), pollution degree 3690 V
Rated impulse withstand voltage (Uimp)6 kV
Number of poles3
Power loss (AC, hot)18 W
Power loss, per pole (AC, hot)6 W
3RV2032-4EA10 — Protection & Tripping
ParameterValue
Overload release setting range22 ... 32 A
Instantaneous short-circuit trip current416 A
Trip classCLASS 10
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)100 kA
Breaking capacity at 500 V (AC)15 kA
Breaking capacity at 690 V (AC)6 kA
Breaking capacity at 240 V100 kA
Breaking capacity at 690 V4 kA
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2032-4EA10 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)50 000
Endurance, auxiliary contacts (typ.)50 000
Switching frequency, AC-3 (max.)15 1/h
3RV2032-4EA10 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals
Main-circuit connector arrangementTop and bottom
Conductor cross-section, solid / stranded2x (1 ... 35 mm²), 1x (1 ... 50 mm²)
Conductor cross-section, finely stranded with ferrule2x (1 ... 25 mm²), 1x (1 ... 35 mm²)
Conductor range, AWG (main contacts)2x (18 ... 2), 1x (18 ... 1)
3RV2032-4EA10 — Mechanical
ParameterValue
Height140 mm
Width55 mm
Depth149 mm
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Mounting positionany
3RV2032-4EA10 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Relative humidity (operation)10 ... 95 %
Max. installation altitude2 000 m
3RV2032-4EA10 — Specifications
ParameterValue
Design Of The ProductFor motor protection

Product details

For a panel fed from a transformer rated 1,000 kVA or larger, that is enough headroom to avoid cascading failures upstream. At 690 V it still clears 4 kA, so it works on 690 V line-fed motors too, though the fault current available at that voltage must be verified against the panel's SCCR. The thermal-magnetic trip is Class 10, which matches the acceleration curve of a standard NEMA Design B or IEC squirrel-cage motor. If the motor takes longer than 10 seconds to start (high-inertia loads like fans or centrifuges), you need a Class 20 or Class 30 device — this one will nuisance-trip on those applications. The width is 55 mm, which is a standard 3-module footprint on a DIN rail — one-for-one swap with most Siemens 3RV2 series breakers. Depth is 149 mm, which matters for enclosure depth clearance. Terminals are screw-type, accepting up to 2× 35 mm² or 1× 50 mm² solid/stranded. Main contact studs are M6.

This part is listed as current production.

Frequently asked questions

Does the 3RV2032-4EA10 detect phase failure?

Yes, phase failure detection is built in. If one phase is lost on the line side, the breaker will trip to prevent single-phasing the motor.

What are the mounting dimensions and clearance requirements?

Width 55 mm, depth 149 mm. Mounts on 35 mm DIN rail per DIN EN 60715. Requires 50 mm clearance above and below and 10 mm at the sides for full rated performance.

MPN
3RV2032-4EA10