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Siemens 3RV1021-1CA10-ZX95 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-1CA10-ZX95 SIRIUS Motor Protection Circuit B

MPN3RV1021-1CA10-ZX95

Siemens SIRIUS motor protection circuit breaker, 3RV1021-1CA10-ZX95, 2.5 A continuous current, CLASS 10 trip class, 100 kA breaking capacity at 400 V AC, screw and snap-on DIN rail mount, IP20 front.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RV1021-1CA10-ZX95 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-1CA10-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)7.25 W
Power loss, per pole (AC, hot)2.4 W
3RV1021-1CA10-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)8 kA
Phase-failure detectionYes
Ground-fault detectionNo
3RV1021-1CA10-ZX95 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)100 000
Switching frequency, AC-3 (max.)15 1/h
3RV1021-1CA10-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)
3RV1021-1CA10-ZX95 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth96 mm
Mounting positionany
3RV1021-1CA10-ZX95 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
3RV1021-1CA10-ZX95 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

What this SIRIUS breaker does on the line

It carries 100 kA breaking capacity at 400 V AC (also at 240 V and 500 V), dropping to 8 kA at 690 V — that's the short-circuit current it can safely interrupt without welding contacts or cascading failure upstream. The auxiliary switch contact is included on the device — no separate add-on module needed for status feedback to the PLC or annunciator.

Dimensions are 45 mm wide, 97 mm tall, 96 mm deep — fits the standard SIRIUS 45 mm footprint, same as the 3RV1011 frame.

Main circuit terminals are screw-type, accepting solid or stranded copper: 2x (1 … 2.5 mm²) or 2x (2.5 … 6 mm²) per clamp, with AWG equivalents of 2x (14 … 10).

Frequently asked questions

Will 3RV1021-1CA10-ZX95 drop into a panel specified for 3RV1011-0GA10?

Both share the same 45 mm SIRIUS footprint and DIN rail mount, so mechanical fit is the same — but verify the continuous current rating (2.5 A on this unit) matches your motor FLA, as the 3RV1011 series covers different amp ranges.

MPN
3RV1021-1CA10-ZX95