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Siemens 3RV2031-4JA15 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2031-4JA15 SIRIUS Motor Protection Circuit Breake

MPN3RV2031-4JA15
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Siemens SIRIUS motor protection circuit breaker, 3RV2031-4JA15, 30 kA breaking capacity at 400 V AC, CLASS 10, 18.5 kW at 230 V, screw and snap-on 35 mm DIN rail mount.

Siemens 3RV2031-4JA15 datasheet (PDF)
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

3RV2031-4JA15 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS2
3RV2031-4JA15 — Electrical
ParameterValue
Rated operational current (Ie)65 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)26 W
Power loss, per pole (AC, hot)8.7 W
3RV2031-4JA15 — Protection & Tripping
ParameterValue
Overload release setting range54 ... 65 A
Instantaneous short-circuit trip current845 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)8 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
3RV2031-4JA15 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)20 000
Endurance, auxiliary contacts (typ.)20 000
Switching frequency, AC-3 (max.)15 1/h
3RV2031-4JA15 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals
Main-circuit connector arrangementTop and bottom
Conductor cross-section, solid / stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section, finely stranded with ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor range, AWG (main contacts)2x (18 ... 2), 1x (18 ... 1)
3RV2031-4JA15 — 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
3RV2031-4JA15 — 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
3RV2031-4JA15 — Specifications
ParameterValue
Design Of The ProductFor motor protection

Product details

It is rated for a breaking capacity of 30 kA at 400 V AC, and can handle motor loads up to 18.5 kW at 230 V.

For a site electrical engineer sizing selectivity, the 30 kA at 400 V is the anchor point for the downstream coordination study.

Trip class and motor protection

Ground fault detection is not included, so if that's required, an external ground-fault module or relay must be added downstream.

The breaker measures 55 mm wide, 140 mm high, and 149 mm deep. For a panel OEM wireman, that 55 mm width is a standard SIRIUS footprint — it occupies one 55 mm slot on the rail, matching the contactor below it for a clean motor starter assembly.

Frequently asked questions

How do I get current pricing and availability for 3RV2031-4JA15?

Pricing and availability are confirmed at quote time against an RFQ through independent distribution. Submit an RFQ for current pricing and stock position.

What is the breaking capacity of 3RV2031-4JA15 at 400 V?

The breaking capacity is 30 kA at 400 V AC. At 240 V it is 100 kA, and at 690 V it is 2 kA.

Does 3RV2031-4JA15 have phase failure detection?

Yes, phase failure detection is included. Ground fault detection is not built in.

MPN
3RV2031-4JA15