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Siemens 3RV1321-1DC10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1321-1DC10 SIRIUS Circuit Breaker, 3.2 A, 690 V

MPN3RV1321-1DC10

Siemens SIRIUS circuit breaker, 3RV1321-1DC10, 3.2 A continuous rated current, 690 V rated voltage, 100 kA breaking capacity at 400 V AC, for starter combinations, screw-type terminals, 45 mm width, DIN-rail mount.

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

Specifications

3RV1321-1DC10 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1321-1DC10 — 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)7.25 W
Power loss, per pole (AC, hot)2.4 W
3RV1321-1DC10 — 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)8 kA
Phase-failure detectionNo
Ground-fault detectionNo
3RV1321-1DC10 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)100 000
Switching frequency, AC-3 (max.)15 1/h
3RV1321-1DC10 — 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)
3RV1321-1DC10 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth96 mm
Mounting positionany
3RV1321-1DC10 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1321-1DC10 — Specifications
ParameterValue
Design Of The Productfor starter combinations

Product details

Its continuous current rating is 3.2 A, and it is rated for a maximum voltage of 690 V.

The 3.2 A continuous rating sets the upper limit for the motor full-load current it can protect. At 400 V, the 1.1 kW rating (per) gives a quick reference for a standard 4-pole induction motor. The AC-3 switching frequency is limited to 15 operations per hour, so this is not a part for high-cycling applications like rapid reversing. The 100,000 mechanical operations typical life is adequate for normal process duty.

Termination and environmental limits

Main and auxiliary/control circuits both use screw-type terminals. The main contacts accept solid or stranded conductors: 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²), with AWG equivalents of 2x (14 to 10). Finely stranded conductors with core-end processing (ferrules) follow the same cross-section range. The front face is rated IP20 — suitable for enclosed panels, not for washdown environments. Shock resistance is 25 g for 11 ms, and mounting position is unrestricted.

Frequently asked questions

Where can I buy 3RV1321-1DC10 and how do I get a price?

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 price and lead time.

What is 3RV1321-1DC10's listed depth?

The depth is 96 mm. Combined with a width of 45 mm and height of 97 mm, it occupies a compact footprint on the DIN rail.

What conductor sizes does the 3RV1321-1DC10 accept?

Solid and stranded conductors: 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²). AWG equivalents: 2x (14 to 10). Finely stranded with ferrules follow the same range.

Will 3RV1321-1DC10 drop into a panel specified for 3RV6011-0CA10 without rewiring?

Both parts are SIRIUS circuit breakers on a 45 mm wide DIN-rail footprint with zero side and back clearance, so the mechanical fit is identical. However, the 3RV1321-1DC10 is rated 3.2 A continuous, while the 3RV6011-0CA10 carries a different current rating — verify the motor FLA against the 3.2 A limit before swapping. Terminal types are both screw-type, so rewiring is not required if conductor sizes match.

What compliance documentation does Siemens provide for 3RV1321-1DC10?

The evidence does not list specific compliance documents (RoHS, REACH, UL, IEC) for this order code. Standard Siemens SIRIUS breakers typically carry UL, CSA, and CE marks; confirm the exact certifications with the RFQ documentation.

MPN
3RV1321-1DC10