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Siemens 3RV1431-4EA10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1431-4EA10 SIRIUS Circuit Breaker, 32 A, Class 10

MPN3RV1431-4EA10

Siemens SIRIUS circuit breaker for transformer protection, 3RV1431-4EA10, 32 A continuous rated current, Class 10 trip, 50 kA breaking capacity at 400 V AC, screw terminals, IP20 front.

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

Specifications

3RV1431-4EA10 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1431-4EA10 — Electrical
ParameterValue
Rated voltage690 V
Rated voltage, AC-3 (max.)690 V
Rated impulse withstand voltage (Uimp)6 000 V
Number of poles3
Power loss (AC, hot)19 W
Power loss, per pole (AC, hot)6.3 W
3RV1431-4EA10 — Protection & Tripping
ParameterValue
Overload release setting range22 ... 32 A
Trip classCLASS 10
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)50 kA
Breaking capacity at 500 V (AC)10 kA
Breaking capacity at 690 V (AC)4 kA
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1431-4EA10 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1431-4EA10 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals with box terminals
Main-circuit connector arrangementfront side
Conductor cross-section, finely stranded with ferrule2x (0.75 ... 16 mm²), 0.75 ... 25 mm²
Conductor range, AWG (main contacts)2x (18 ... 2), 1x (18 ... 2)
3RV1431-4EA10 — Mechanical
ParameterValue
Height140 mm
Width55 mm
Depth149 mm
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Mounting positionany
3RV1431-4EA10 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1431-4EA10 — Specifications
ParameterValue
Design Of The Productfor transformer protection

Product details

SIRIUS 3RV1431-4EA10 — Transformer Protection Circuit Breaker, 32 A, Class 10

The Class 10 rating means it trips fast enough to protect a transformer winding from prolonged inrush without nuisance tripping — a key fit criterion for transformer primary-side protection in control panels. Breaking capacity is rated at 100 kA at 240 V AC, 50 kA at 400 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC.

Main current circuit uses screw-type box terminals. Accepts 2x (0.75... 16 mm²) solid or 2x (0.75... 25 mm²) stranded, with a single conductor up to 35 mm² stranded. The auxiliary and control circuit also uses screw terminals. The 0 mm backwards clearance and 0 mm side clearance mean it can be mounted flush against adjacent devices without derating — useful when packing breakers tightly on a rail.

RoHS compliance is indicated by a substance prohibition date of 07/01/2006. Shock resistance is 25 g for 11 ms.

Frequently asked questions

Where can I buy the 3RV1431-4EA10 and get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is the breaking capacity of the 3RV1431-4EA10 at 400 V?

The breaking capacity at 400 V AC is 50 kA.

What wire sizes does the 3RV1431-4EA10 accept?

The main circuit screw terminals accept 2x (0.75... 16 mm²) solid or 2x (0.75... 25 mm²) stranded, with a single conductor up to 35 mm² stranded.

Does the 3RV1431-4EA10 have phase failure detection?

Yes, phase failure detection is built in.

MPN
3RV1431-4EA10