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Siemens 3RV2021-4CA10-ZX95 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV2021-4CA10-ZX95 SIRIUS Motor Circuit Breaker, Cla

MPN3RV2021-4CA10-ZX95
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Siemens SIRIUS 3RV2021-4CA10-ZX95 motor protection circuit breaker, Trip Class 10, screw and snap-on 35 mm DIN rail, 45 x 97 x 97 mm.

Siemens 3RV2021-4CA10-ZX95 datasheet (PDF)
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

3RV2021-4CA10-ZX95 — Identification
ParameterValue
SeriesSIRIUS
Product designationCircuit breaker
Frame sizeS0
3RV2021-4CA10-ZX95 — Electrical
ParameterValue
Rated operational current (Ie)22 A
Rated voltage20 ... 690 V
Rated voltage, AC-3 (max.)690 V
Rated frequency50 ... 60 Hz
Rated insulation voltage (Ui), pollution degree 3690 V
Rated impulse withstand voltage (Uimp)6 kV
Number of poles3
Power loss (AC, hot)10.5 W
Power loss, per pole (AC, hot)3.5 W
3RV2021-4CA10-ZX95 — Protection & Tripping
ParameterValue
Overload release setting range16 ... 22 A
Instantaneous short-circuit trip current286 A
Trip classCLASS 10
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)55 kA
Breaking capacity at 500 V (AC)10 kA
Breaking capacity at 690 V (AC)4 kA
Breaking capacity at 240 V100 kA
Breaking capacity at 690 V2 kA
Short-circuit trip typemagnetic
Overload release typethermal
Short-circuit protectionYes
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV2021-4CA10-ZX95 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)100 000
Endurance, auxiliary contacts (typ.)100 000
Switching frequency, AC-3 (max.)15 1/h
Auxiliary CO (changeover) contacts0
3RV2021-4CA10-ZX95 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals
Main-circuit connector arrangementTop and bottom
Conductor cross-section, solid / stranded2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)
Conductor cross-section, finely stranded with ferrule2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm²
3RV2021-4CA10-ZX95 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth97 mm
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Mounting positionany
3RV2021-4CA10-ZX95 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Relative humidity (operation)10 ... 95 %
Max. installation altitude2 000 m
3RV2021-4CA10-ZX95 — Specifications
ParameterValue
Design Of The ProductFor motor protection

Product details

Breaking capacity and ratings

This breaker delivers a 100 kA interrupting rating at 240 V, dropping to 25 kA at 400 V, and 2 kA at 690 V. At 480 V it is rated 22 A, at 600 V also 22 A, so for a 480 V motor branch the continuous current limit is 22 A.

The 45 mm wide body fits a standard DIN-rail footprint — three of these side by side occupy 135 mm, leaving clearance for adjacent devices. Screw terminals for the main circuit accept 2x (1 to 2.5 mm²) or 2x (2.5 to 10 mm²) solid or stranded copper.

Frequently asked questions

How do I get current pricing and availability for 3RV2021-4CA10-ZX95?

The part is sourced and quoted to order against an RFQ through independent distribution, with availability and current pricing confirmed at quote time.

What is 3RV2021-4CA10-ZX95's listed depth (97 mm) on this component line?

The depth is 97 mm.

What is 3RV2021-4CA10-ZX95's listed width (45 mm) on this component line?

The width is 45 mm.

Will 3RV2021-4CA10-ZX95 drop into a panel that was specified around 3RV1011-1HA10 without rewiring?

Both are SIRIUS motor protection breakers on the same 45 mm DIN-rail footprint with screw terminals. The 3RV2021-4CA10-ZX95 has a higher interrupting capacity (100 kA at 240 V vs the 3RV1011-1HA10's typical 50 kA class), so it may require verifying the available fault current at the panel. Terminal wire sizes are similar, so rewiring is not expected.

MPN
3RV2021-4CA10-ZX95