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Siemens 3RV2031-4TA15 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2031-4TA15 SIRIUS Motor Protection Circuit Breake

MPN3RV2031-4TA15
Active

Siemens SIRIUS 3RV2031-4TA15 motor protection circuit breaker, CLASS 10, 30 kA at 400 V, screw and snap-on mounting onto 35 mm DIN rail, 55 x 140 x 149 mm.

Siemens 3RV2031-4TA15 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

3RV2031-4TA15 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS2
3RV2031-4TA15 — Electrical
ParameterValue
Rated operational current (Ie)17 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
3RV2031-4TA15 — Protection & Tripping
ParameterValue
Overload release setting range12 ... 17 A
Instantaneous short-circuit trip current260 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)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
Overload release typethermal
Short-circuit protectionYes
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2031-4TA15 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)50 000
Endurance, auxiliary contacts (typ.)50 000
Switching frequency, AC-3 (max.)15 1/h
3RV2031-4TA15 — 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 ... 3), 1x (18 ... 2)
3RV2031-4TA15 — 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
3RV2031-4TA15 — 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
3RV2031-4TA15 — Specifications
ParameterValue
Design Of The ProductFor motor protection

Product details

It also carries 100 kA at 240 V, 6 kA at 500 V, and 3 kA at 690 V, so you can apply it across a range of supply voltages and still meet the SCCR requirement.

Main contact terminals accept M6 bolts, and the control wiring can take 2 x (0.5 to 1.5 mm²) or 2 x (0.75 to 2.5 mm²) solid or stranded — spring-cage or screw terminals depending on the variant, but this listing's terminal spec covers the copper range you'll typically pull for a motor feeder.

The 3RV2031-4TA15 is listed as current production.

Frequently asked questions

Does 3RV2031-4TA15 detect phase failure?

Yes, phase failure detection is built in — it will trip on loss of any phase, protecting the motor from single-phasing.

MPN
3RV2031-4TA15