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Siemens 3RV1331-4AC10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1331-4AC10 SIRIUS Circuit Breaker, 16 A, 7.5 kW a

MPN3RV1331-4AC10

Siemens SIRIUS 3RV1331-4AC10 circuit breaker for starter combinations, 16 A continuous, 7.5 kW at 400 V AC-3, 55 x 140 x 149 mm, screw terminals, DIN-rail mount.

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

Specifications

3RV1331-4AC10 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1331-4AC10 — Electrical
ParameterValue
Rated voltage690 V
Rated voltage, AC-3 (max.)690 V
Rated impulse withstand voltage (Uimp)6 000 V
Number of poles3
Power loss (AC, hot)14.5 W
Power loss, per pole (AC, hot)4.8 W
3RV1331-4AC10 — Protection & Tripping
ParameterValue
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)50 kA
Breaking capacity at 500 V (AC)12 kA
Breaking capacity at 690 V (AC)5 kA
Phase-failure detectionNo
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1331-4AC10 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1331-4AC10 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals with box terminals
Main-circuit connector arrangementfront side
Conductor cross-section, finely stranded with ferrule2x (0.75 ... 16 mm²), 0.75 ... 25 mm²
Conductor range, AWG (main contacts)2x (18 ... 2), 1x (18 ... 2)
3RV1331-4AC10 — 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
3RV1331-4AC10 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1331-4AC10 — Specifications
ParameterValue
Design Of The Productfor starter combinations

Product details

It's rated 16 A continuous, which translates to 7.5 kW at 400 V in AC-3 duty (the standard motor-switching curve). The interrupting ratings tell the real story: 100 kA at 240 V AC, 50 kA at 400 V AC, 12 kA at 500 V AC, and 5 kA at 690 V AC. For a panel on a 400 V system with a transformer feeding a motor control center, that 50 kA SCCR gives you headroom to coordinate with upstream breakers without cascading faults. If your plant runs at 690 V, you're still covered at 5 kA — enough for most industrial distribution.

Zero clearance needed at the back or sides (0 mm backwards, 0 mm at the side), so you can pack it tight in a panel — no extra breathing room required. Screw-type terminals for both main and auxiliary circuits; the main terminals accept solid 2x (0.75…16 mm²) or stranded 2x (0.75…25 mm²) with a single conductor up to 35 mm². That's plenty of lug for a 16 A device. No ground-fault or phase-failure detection built in — this is a straight motor-protective breaker, not a multifunction monitor.

Frequently asked questions

Where can I buy 3RV1331-4AC10 and what is the lead time?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm lead time and price.

What is the closest functional second-source to 3RV1331-4AC10?

The 3RV5341-4LC10 is a SIRIUS 3RV5 frame breaker with similar ratings but a wider footprint and higher SCCR potential. It will not drop into the same panel without rewiring due to different mounting dimensions and terminal layout.

What is 3RV1331-4AC10's depth?

The depth is 149 mm. Combined with a width of 55 mm and height of 140 mm, it fits a standard DIN-rail enclosure without overhang.

What compliance documentation does this part carry?

RoHS compliance is confirmed with a substance prohibition date of July 1, 2006. IEC ratings are listed (690 V, 50 kA at 400 V). UL or CSA marks are not explicitly stated in the spec record — verify with the manufacturer if UL listing is required for your jurisdiction.

MPN
3RV1331-4AC10