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Siemens 3RV1321-0AC10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1321-0AC10 SIRIUS Circuit Breaker, 0.16 A, 100 kA

MPN3RV1321-0AC10

Siemens SIRIUS 3RV1321-0AC10 circuit breaker for starter combinations, 0.16 A continuous current, 100 kA breaking capacity at 400 V, 3-pole, screw terminals, DIN rail mount, IP20 front.

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

Specifications

3RV1321-0AC10 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1321-0AC10 — 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)5.5 W
Power loss, per pole (AC, hot)1.8 W
3RV1321-0AC10 — Protection & Tripping
ParameterValue
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)100 kA
Breaking capacity at 500 V (AC)100 kA
Breaking capacity at 690 V (AC)100 kA
Phase-failure detectionNo
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1321-0AC10 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1321-0AC10 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals
Main-circuit connector arrangementfront side
Conductor cross-section, finely stranded with ferrule2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)
Conductor range, AWG (main contacts)2x (14 ... 10)
3RV1321-0AC10 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth96 mm
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Mounting positionany
3RV1321-0AC10 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1321-0AC10 — Specifications
ParameterValue
Design Of The Productfor starter combinations

Product details

What this 0.16 A breaker does in a panel

The continuous current rating of 0.16 A tells you this is sized for very small loads: think control transformers, small solenoid valves, or pilot circuits, not a main motor. What makes it notable is the 100 kA breaking capacity it holds across the board at 240 V, 400 V, 500 V, and 690 V — that's a fault-clearing capability that lets it ride through high available fault currents without upstream coordination headaches.

Shock-rated to 25g / 11 ms, which covers most industrial vibration profiles.

For a BOM line that needs this exact order code, the 0.16 A rating and 100 kA breaking capacity are the fit-critical specs — verify the load current matches before committing the line.

Frequently asked questions

Where can I buy the 3RV1321-0AC10 and get a price?

This part is sourced to order through independent distribution. Submit an RFQ for current pricing and availability confirmation.

What is the 3RV1321-0AC10's breaking capacity at 400 V?

It carries a 100 kA breaking capacity at 400 V AC, matching the same rating at 240 V, 500 V, and 690 V.

What wire sizes does the 3RV1321-0AC10 accept?

The screw terminals accept solid or stranded wire: 2x (1 to 2.5 mm²) and 2x (2.5 to 6 mm²) per terminal, with dual-wire entry for looping.

Will the 3RV1321-0AC10 drop into a panel specified for the 3RV1011-0GA10?

Both are SIRIUS 3-pole circuit breakers on the same 45 mm DIN-rail footprint, so the mechanical fit is the same. The key difference is the current rating — the 3RV1321-0AC10 is 0.16 A, while the 3RV1011-0GA10 is a different rating. Verify the load current before substituting.

MPN
3RV1321-0AC10