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Siemens 3RV5031-4FA10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV5031-4FA10 SIRIUS Motor Protection Circuit Breake

MPN3RV5031-4FA10

Siemens SIRIUS motor protection circuit breaker, 3RV5031-4FA10, size S2, 40 A rated operational current, Class 10 thermal-magnetic trip, 690 V AC, screw-type terminals, DIN rail mount.

Siemens 3RV5031-4FA10 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RV5031-4FA10 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS2
3RV5031-4FA10 — Electrical
ParameterValue
Rated operational current (Ie)40 A
Rated voltage690 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
3RV5031-4FA10 — Protection & Tripping
ParameterValue
Overload release setting range28 ... 40 A
Instantaneous short-circuit trip current520 A
Trip classCLASS 10
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
3RV5031-4FA10 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals with box terminals
Main-circuit connector arrangementTop and bottom
Conductor cross-section, solid / stranded2x (0.75 ... 25 mm²), 1x (0.75 ... 35 mm²)
Conductor cross-section, finely stranded with ferrule2x (0.75 ... 16 mm²), 1x (0.75 ... 25 mm²)
Conductor range, AWG (main contacts)2x (18 ... 2), 1x (18 ... 2)
3RV5031-4FA10 — Mechanical
ParameterValue
Height140 mm
Width55 mm
Depth149 mm
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022
Mounting positionany
3RV5031-4FA10 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Transport temperature-50 ... +80 °C
Relative humidity (operation)10 ... 95 %
Max. installation altitude2 000 m
3RV5031-4FA10 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

The S2 frame is 55 mm wide, 140 mm tall, 149 mm deep — fits standard panel layouts. Clearance requirements: 50 mm above and below, 30 mm at the sides, 140 mm forward, zero backward. Main circuit connections are screw-type box terminals accepting 2×(0.75–25 mm²) solid/stranded or 1×(0.75–35 mm²); AWG equivalents 2×(18–2) or 1×(18–2). Torque range 3–4.5 N·m. Terminals arranged top and bottom for straightforward busbar or cable routing.

Relative humidity 10–95% during operation. Installation altitude up to 2,000 m above sea level. Shock resistance 25 g / 11 ms per IEC 60068-2-27. RoHS compliant with substance prohibition date July 1, 2006. Total typical power loss 20 W.

Frequently asked questions

What is the closest functional second-source to 3RV5031-4FA10?

The 3RV6021-4DA10 is a functional peer in the SIRIUS portfolio, but it is a different frame size and may have different mounting or terminal arrangements. The 3RV5031-4FA10 is size S2; verify panel cutout and wiring before substituting.

Will 3RV5031-4FA10 drop into a panel specified for 3RV6021-4DA10 without rewiring?

Not without checking. Both are SIRIUS motor protection breakers, but the 3RV5031-4FA10 is size S2 (55 mm wide) while the 3RV6021-4DA10 is a different frame. Terminal arrangement, clearance requirements, and DIN rail footprint may differ. Compare the dimensional data before assuming a drop-in replacement.

What compliance documentation does Siemens provide for 3RV5031-4FA10?

RoHS compliance is confirmed with a substance prohibition date of July 1, 2006. The part is designed to meet IEC 60947-2 and IEC 60947-4-1 standards for motor protection circuit breakers. Full declarations and certificates are available from Siemens upon request.

Where can I buy 3RV5031-4FA10?

This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time.

MPN
3RV5031-4FA10