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Siemens 3RV1321-4CC10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1321-4CC10 SIRIUS Circuit Breaker, 22 A, 11 kW at

MPN3RV1321-4CC10

Siemens SIRIUS circuit breaker, 3RV1321-4CC10, for starter combinations, 22 A continuous, 11 kW at 400 V, 50 kA breaking capacity at 400 V, screw terminals, DIN rail mount.

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

Specifications

3RV1321-4CC10 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1321-4CC10 — Electrical
ParameterValue
Rated impulse withstand voltage (Uimp)6 000 V
Number of poles3
Power loss (AC, hot)10.5 W
Power loss, per pole (AC, hot)3.5 W
3RV1321-4CC10 — 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)10 kA
Breaking capacity at 690 V (AC)4 kA
Phase-failure detectionNo
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1321-4CC10 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1321-4CC10 — 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)
3RV1321-4CC10 — 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
3RV1321-4CC10 — Environmental
ParameterValue
Max. installation altitude2 000 m
3RV1321-4CC10 — Specifications
ParameterValue
Design Of The Productfor starter combinations

Product details

At 240 V the breaking capacity jumps to 100 kA, covering high-fault installations. The IP20 front protection keeps fingers away from live parts — finger-safe touch protection is built in. Operating temperature range is -20 to +60 °C, storage -50 to +80 °C, and it withstands 25g shock at 11 ms, so it's fine for conveyor lines or machine tools with vibration.

The 22 A continuous current rating is the thermal current the breaker can carry indefinitely without tripping. The operating voltage max is 690 V, so it works on 400 V, 480 V, and 690 V systems. Breaking capacity varies with voltage: 100 kA at 240 V, 50 kA at 400 V, 10 kA at 500 V, and 4 kA at 690 V. For a 400 V panel with a 50 kA available fault current, this breaker is a direct fit. The power loss in hot operating state is 10.5 W total, 3.5 W per pole — useful for thermal management inside a sealed enclosure. It has three poles for the main circuit and accepts an auxiliary switch (product extension auxiliary switch: yes). No ground fault or phase failure detection built in — those functions are handled by the upstream motor starter or a separate monitoring relay. The maximum operating frequency at AC-3 is 15 operations per hour, so it's suited for intermittent duty, not high-cycle applications like rapid reversing.

Solid and stranded wire acceptance: 2x (1 to 2.5 mm²) and 2x (2.5 to 6 mm²) per terminal. AWG equivalents: 2x (14 to 10) for main contacts. Finely stranded with core end processing also accepted in the same ranges. No backwards or side clearance required — 0 mm spacing — so you can mount multiple units side by side without extra gap. Mounting position any orientation. Dimensions: 45 mm wide, 97 mm high, 96 mm deep. That's a standard 45 mm module width, so it occupies one slot on a DIN rail. The depth of 96 mm means it projects about 96 mm from the rail — check enclosure depth if you're retrofitting into a shallow panel.

For volume purchases or blanket orders, submit an RFQ — we can provide compliance documentation (RoHS substance prohibition date 01.05.2012, REACH, UL, IEC) with the quote.

Frequently asked questions

What is the breaking capacity of 3RV1321-4CC10 at 400 V?

50 kA at 400 V AC. At 240 V it's 100 kA, at 500 V it's 10 kA, and at 690 V it's 4 kA.

Will 3RV1321-4CC10 drop into a panel specified around 3RV1011-1HA10?

The 3RV1321-4CC10 is a larger-frame breaker (22 A vs the 3RV1011-1HA10's lower rating) and shares the same 45 mm width and DIN rail mounting, so it fits the same rail footprint. However, the terminal wire ranges and power loss differ — verify the panel's thermal budget and wire sizing before swapping.

What compliance documentation does Siemens provide for 3RV1321-4CC10?

RoHS compliance is confirmed with a substance prohibition date of 01.05.2012. REACH, UL, and IEC documentation are available with the product — request them with your RFQ.

Where can I buy 3RV1321-4CC10 and how is it quoted?

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 offer.

MPN
3RV1321-4CC10