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Siemens 3RV2431-4PA10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2431-4PA10 SIRIUS Circuit Breaker, 100 kA at 240

MPN3RV2431-4PA10
Active

Siemens SIRIUS circuit breaker, 3RV2431-4PA10, for transformer protection, 100 kA at 240 V AC, Class 10 trip, phase failure detection, screw and snap-on mounting.

$110.49Ref. price · indicative, final on quote
Siemens 3RV2431-4PA10 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RV2431-4PA10 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS2
3RV2431-4PA10 — Electrical
ParameterValue
Rated operational current (Ie)36 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)20 W
Power loss, per pole (AC, hot)6.7 W
3RV2431-4PA10 — Protection & Tripping
ParameterValue
Overload release setting range28 ... 36 A
Instantaneous short-circuit trip current820 A
Trip classCLASS 10
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)65 kA
Breaking capacity at 500 V (AC)10 kA
Breaking capacity at 690 V (AC)4 kA
Breaking capacity at 240 V100 kA
Breaking capacity at 690 V2 kA
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2431-4PA10 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)50 000
Endurance, auxiliary contacts (typ.)50 000
Switching frequency, AC-3 (max.)15 1/h
3RV2431-4PA10 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals
Main-circuit connector arrangementTop and bottom
Conductor cross-section, solid / stranded2x (1 ... 25 mm²), 1x (1 ... 35 mm²)
Conductor cross-section, finely stranded with ferrule2x (1 ... 16 mm²), 1x (1 ... 25 mm²)
Conductor range, AWG (main contacts)2x (18 ... 3), 1x (18 ... 2)
3RV2431-4PA10 — Mechanical
ParameterValue
Height140 mm
Width55 mm
Depth149 mm
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
Mounting positionany
3RV2431-4PA10 — 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
3RV2431-4PA10 — Specifications
ParameterValue
Design Of The ProductFor transformer protection

Product details

It sits in the main current circuit, sized to handle inrush without nuisance tripping thanks to its Class 10 trip characteristic.

Breaking capacity — the real number that matters

At 240 V AC this breaker interrupts 100 kA. At 400 V AC it still handles 65 kA. That's enough for most industrial service-entrance panels and transformer secondaries. The 480 V rating is 36 A continuous, which matches the typical secondary of a 30 kVA transformer.

The footprint is 55 mm wide, 140 mm tall, 149 mm deep. Clearances: 50 mm above and below, 10 mm to the side, zero forward or backward.

Frequently asked questions

Where can I buy 3RV2431-4PA10 and how do I 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 — submit an RFQ for a firm price and lead time.

What is the breaking capacity of 3RV2431-4PA10 at 240 V?

At 240 V AC, the breaking capacity is 100 kA. At 400 V AC it is 65 kA.

Will 3RV2431-4PA10 drop into a panel specified around 3RV2023-4DA10 without rewiring?

The 3RV2431-4PA10 is a different frame size (55 mm wide vs the 3RV2023-4DA10's 45 mm) and is designed for transformer protection rather than motor protection. It will not be a direct mechanical or electrical drop-in without panel modifications.

MPN
3RV2431-4PA10