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Siemens 3RV1021-0CA10-ZX95 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-0CA10-ZX95 SIRIUS Motor Protection Circuit B

MPN3RV1021-0CA10-ZX95

Siemens SIRIUS motor protection circuit breaker, 0.25 A, CLASS 10, 100 kA at 400 V AC, screw terminals, snap-on DIN rail mount.

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

Specifications

3RV1021-0CA10-ZX95 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-0CA10-ZX95 — 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
3RV1021-0CA10-ZX95 — Protection & Tripping
ParameterValue
Trip classCLASS 10
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 detectionYes
Ground-fault detectionNo
3RV1021-0CA10-ZX95 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)100 000
Switching frequency, AC-3 (max.)15 1/h
3RV1021-0CA10-ZX95 — 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)
3RV1021-0CA10-ZX95 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth96 mm
Mounting positionany
3RV1021-0CA10-ZX95 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
3RV1021-0CA10-ZX95 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

This Siemens SIRIUS 3RV1021-0CA10-ZX95 is a motor protection circuit breaker rated 0.25 A continuous current, with a CLASS 10 trip characteristic and 100 kA breaking capacity at 400 V AC. It mounts on a 35 mm DIN rail per EN 50022, screw and snap-on, and accepts screw-type terminals for the main circuit — 2x (1…2.5 mm²) solid or stranded, and 2x (2.5…6 mm²) for larger conductors.

The 0.25 A continuous current sets the motor full-load amp (FLA) ceiling — this breaker protects a motor drawing up to 0.25 A at rated load.

Deployment context

Shock rated 25g / 11 ms.

Frequently asked questions

Who supplies 3RV1021-0CA10-ZX95 and how is it quoted for volume purchases?

This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.

When sourcing 3RV1021-0CA10-ZX95, what's the closest functional second-source — 3RV1011-0GA10?

The 3RV1011-0GA10 is a peer in the same SIRIUS motor protection breaker family, but it is a different rating variant — verify your motor FLA and breaking capacity requirements before substituting.

What is 3RV1021-0CA10-ZX95's listed depth (96 mm) on this component line?

The listed depth is 96 mm.

What is 3RV1021-0CA10-ZX95's listed solid (2x (1... 2.5 mm²), 2x (2.5... 6 mm²)) on this component line?

The main circuit screw terminals accept solid conductors: 2x (1…2.5 mm²) and 2x (2.5…6 mm²).

Will 3RV1021-0CA10-ZX95 drop into a panel that was specified around 3RV1011-0GA10 without rewiring?

Both share the same SIRIUS family and 45 mm width, so the DIN-rail footprint and terminal pitch are identical — no rewiring needed for the panel layout, but confirm the current rating and trip class match your motor.

What compliance documentation does this brand provide for 3RV1021-0CA10-ZX95 (RoHS, REACH, UL, IEC)?

As a Siemens SIRIUS product, it carries CE marking and is designed to IEC/EN 60947 standards; UL/CSA certification is typical for the series but should be confirmed per the specific variant.

MPN
3RV1021-0CA10-ZX95