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Siemens 3RV2331-4BC10 — Motor Protection Circuit Breakers (MPCB)

Siemens SIRIUS 3RV2331-4BC10 Circuit Breaker, 30 kA @ 400 V

MPN3RV2331-4BC10
Active

Siemens SIRIUS, circuit breaker for starter combinations, 3RV2331-4BC10, 30 kA breaking capacity at 400 V AC, screw-type terminals, snap-on 35 mm DIN rail.

Siemens 3RV2331-4BC10 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RV2331-4BC10 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS2
3RV2331-4BC10 — Electrical
ParameterValue
Rated operational current (Ie)20 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)14.5 W
Power loss, per pole (AC, hot)4.8 W
3RV2331-4BC10 — Protection & Tripping
ParameterValue
Instantaneous short-circuit trip current260 A
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)65 kA
Breaking capacity at 500 V (AC)12 kA
Breaking capacity at 690 V (AC)5 kA
Breaking capacity at 240 V100 kA
Breaking capacity at 690 V3 kA
Short-circuit trip typemagnetic
Short-circuit protectionYes
Phase-failure detectionNo
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2331-4BC10 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)50 000
Endurance, auxiliary contacts (typ.)50 000
Switching frequency, AC-3 (max.)15 1/h
3RV2331-4BC10 — 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)
3RV2331-4BC10 — 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
3RV2331-4BC10 — 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
3RV2331-4BC10 — Specifications
ParameterValue
Design Of The ProductFor starter combinations

Product details

At 400 V, this breaker interrupts 30 kA of prospective fault current — that's the SCCR the panel can withstand without upstream damage. At 240 V it handles 100 kA, at 500 V it drops to 6 kA, and at 690 V to 3 kA. For a 480 V system, the rated current is 20 A.

Integration into a motor starter

This is the 'for starter combinations' variant — it mates directly with a SIRIUS contactor to form a compact motor starter, saving panel width compared to separate breaker + overload relay. The screw-type terminals on the main current circuit accept 2x 1…25 mm² or 1x 1…35 mm² solid or stranded copper. Main contact torque is M6.

Environmental and mounting clearances

Dimensions are 149 mm deep, 55 mm wide, 140 mm high.

Frequently asked questions

What is the breaking capacity of 3RV2331-4BC10 at 400 V?

At 400 V, the rated breaking capacity is 30 kA. At 240 V it is 100 kA, at 500 V it is 6 kA, and at 690 V it is 3 kA.

Will 3RV2331-4BC10 drop into a panel specified for 3RV2023-4CA10?

No — the 3RV2331-4BC10 is a different frame size and design generation. While both mount on 35 mm DIN rail, the physical footprint, terminal layout, and accessory compatibility differ. Verify the mounting hole pattern and terminal locations before substituting.

How do I get pricing and availability for 3RV2331-4BC10?

This part is sourced to order against an RFQ through independent distribution. Submit a request for quote to receive current pricing and confirmed availability — stock positions and lead times are confirmed at quote time, not on the product page.

MPN
3RV2331-4BC10