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Siemens 3RV1021-4DA15-ZX95 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-4DA15-ZX95 SIRIUS Motor Protection Circuit B

MPN3RV1021-4DA15-ZX95

Siemens SIRIUS 3RV1021-4DA15-ZX95 motor protection circuit breaker, 25 A continuous rated current, CLASS 10 trip class, 11 kW at 400 V AC-3, screw-type terminals, snap-on 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

3RV1021-4DA15-ZX95 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-4DA15-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)10.5 W
Power loss, per pole (AC, hot)3.5 W
3RV1021-4DA15-ZX95 — Protection & Tripping
ParameterValue
Overload release setting range20 ... 25 A
Trip classCLASS 10
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 detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1021-4DA15-ZX95 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1021-4DA15-ZX95 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals
Main-circuit connector arrangementfront side
Conductor cross-section, finely stranded with ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor range, AWG (main contacts)2x (14 ... 10)
3RV1021-4DA15-ZX95 — 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
3RV1021-4DA15-ZX95 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1021-4DA15-ZX95 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

Motor protection circuit breaker, 25 A, CLASS 10 — SIRIUS 3RV1021-4DA15-ZX95

The Siemens SIRIUS 3RV1021-4DA15-ZX95 is a motor protection circuit breaker rated for 25 A continuous current with CLASS 10 trip characteristic, sized for 11 kW motor loads at 400 V AC-3 duty. Breaking capacity is 100 kA at 240 V AC, 50 kA at 400 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC — sufficient for most industrial panel fault levels downstream of a distribution transformer. The auxiliary switch is a transverse design and the product extension allows adding auxiliary contacts without removing the breaker from the rail.

Any mounting position is permitted. Main circuit terminals accept solid conductors 2×(0.5…1.5 mm²) and 2×(0.75…2.5 mm²), or stranded 2×(1…2.5 mm²) and 2×(2.5…6 mm²). AWG equivalents for main contacts are 2×(14…10).

Shock resistance rated at 25 g for 11 ms.

Frequently asked questions

Where can I buy 3RV1021-4DA15-ZX95 and get a price?

This part is sourced and quoted to order through independent distribution against an RFQ. Submit a request for quote to confirm current pricing and availability.

What is the breaking capacity of 3RV1021-4DA15-ZX95 at 400 V?

The breaking capacity is 50 kA at 400 V AC, 100 kA at 240 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC.

What compliance documentation does Siemens provide for 3RV1021-4DA15-ZX95?

RoHS compliance is documented with a substance prohibition date of 01.05.2012. The part carries IP20 front protection and is designed to IEC/EN standards for motor protection circuit breakers.

MPN
3RV1021-4DA15-ZX95