BOM / RFQ

Siemens 3RV1431-4FA10-0BA0 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1431-4FA10-0BA0 SIRIUS Circuit Breaker, 40 A, Cla

MPN3RV1431-4FA10-0BA0

Siemens SIRIUS circuit breaker for transformer protection, 3RV1431-4FA10-0BA0, 40 A continuous, Class 10 trip, 50 kA at 400 V AC, screw terminals, IP20 front.

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Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RV1431-4FA10-0BA0 — Identification
Parameter	Value
Series	SIRIUS
Product designation	circuit breaker

3RV1431-4FA10-0BA0 — Electrical
Parameter	Value
Rated voltage	690 V
Rated voltage, AC-3 (max.)	690 V
Rated impulse withstand voltage (Uimp)	6 000 V
Number of poles	3
Power loss (AC, hot)	29 W
Power loss, per pole (AC, hot)	9.7 W

3RV1431-4FA10-0BA0 — Protection & Tripping
Parameter	Value
Overload release setting range	28 ... 40 A
Trip class	CLASS 10
Breaking capacity at 240 V (AC)	100 kA
Breaking capacity at 400 V (AC)	50 kA
Breaking capacity at 500 V (AC)	10 kA
Breaking capacity at 690 V (AC)	4 kA
Phase-failure detection	Yes
Ground-fault detection	No
Auxiliary switch extendable	Yes

3RV1431-4FA10-0BA0 — Endurance & Switching
Parameter	Value
Auxiliary CO (changeover) contacts	0

3RV1431-4FA10-0BA0 — Connections
Parameter	Value
Main-circuit terminal type	screw-type terminals with box terminals
Main-circuit connector arrangement	front side
Conductor cross-section, finely stranded with ferrule	2x (0.75 ... 16 mm²), 0.75 ... 25 mm²
Conductor range, AWG (main contacts)	2x (18 ... 2), 1x (18 ... 2)

3RV1431-4FA10-0BA0 — Mechanical
Parameter	Value
Height	140 mm
Width	55 mm
Depth	149 mm
Mounting method	screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Mounting position	any

3RV1431-4FA10-0BA0 — Environmental
Parameter	Value
Operating temperature	-50 ... +60 °C
Storage temperature	-50 ... +80 °C
Transport temperature	-50 ... +80 °C
Max. installation altitude	2 000 m

3RV1431-4FA10-0BA0 — Specifications
Parameter	Value
Design Of The Product	for transformer protection

Product details

Breaking capacity is rated at 50 kA at 400 V AC, 100 kA at 240 V, 10 kA at 500 V, and 4 kA at 690 V — covering the common industrial distribution voltages.

The footprint is 55 mm wide × 140 mm high × 149 mm deep, with zero clearance required at the back or sides — so it fits tight against adjacent components in a crowded panel. Terminals accept solid conductors 2× (0.75 … 16 mm²) and stranded 2× (0.75 … 25 mm²) or 1× (0.75 … 35 mm²). The main circuit uses screw-type box terminals; auxiliary and control circuits also use screw terminals. AWG equivalents are 2× (18 … 2) solid and 1× (18 … 2) stranded.

Substance prohibition date is 07/01/2006 — consistent with RoHS compliance. The front face carries IP20 finger-safe touch protection.