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Siemens 3RV1021-1EA10-ZW95 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-1EA10-ZW95 SIRIUS Motor Circuit Breaker, 4 A

MPN3RV1021-1EA10-ZW95

Siemens SIRIUS motor-protective circuit breaker, 3RV1021-1EA10-ZW95, 4 A continuous, Class 10 trip, 1.5 kW at 400 V, 100 kA breaking capacity, screw terminals, DIN-rail mount.

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

3RV1021-1EA10-ZW95 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-1EA10-ZW95 — 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
3RV1021-1EA10-ZW95 — Protection & Tripping
ParameterValue
Overload release setting range2.8 ... 4 A
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)6 kA
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1021-1EA10-ZW95 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1021-1EA10-ZW95 — 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)
3RV1021-1EA10-ZW95 — 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
3RV1021-1EA10-ZW95 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1021-1EA10-ZW95 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

The Siemens 3RV1021-1EA10-ZW95 is a SIRIUS motor-protective circuit breaker rated for 4 A continuous current with a Class 10 trip characteristic, sized for a 1.5 kW motor at 400 V AC. The IP20 front face keeps live parts behind the panel door.

This breaker clears 100 kA at 400 V and 500 V AC, dropping to 6 kA at 690 V.

Width is 45 mm, height 97 mm, depth 96 mm. Zero clearance needed at the sides or rear — packs tight against adjacent devices. Screw terminals accept 2x (1 to 2.5 mm²) solid or stranded, or 2x (2.5 to 6 mm²) for heavier feeds. AWG 14 to 10 for the main contacts. Any mounting position works.

Frequently asked questions

Where can I buy 3RV1021-1EA10-ZW95 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.

What is the breaking capacity of 3RV1021-1EA10-ZW95?

It clears 100 kA at 400 V and 500 V AC, and 6 kA at 690 V AC.

Will 3RV1021-1EA10-ZW95 drop into a panel that was specified around 3RV1011-0GA10 without rewiring?

Both are SIRIUS motor-protective breakers with the same DIN-rail footprint and screw-terminal wiring, so the swap is a direct mechanical fit. Verify the amp rating and trip class match your motor — the 3RV1021-1EA10-ZW95 is 4 A, Class 10, while the 3RV1011-0GA10 may differ.

MPN
3RV1021-1EA10-ZW95