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Siemens 3RV1021-1DA10-ZW95 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-1DA10-ZW95 SIRIUS Motor Protection Circuit B

MPN3RV1021-1DA10-ZW95

Siemens SIRIUS 3RV1021-1DA10-ZW95, motor protection circuit breaker, 3-pole, 3.2 A, Class 10, 100 kA breaking capacity at 400 V AC, screw terminals, IP20 front, 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

3RV1021-1DA10-ZW95 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-1DA10-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
3RV1021-1DA10-ZW95 — Protection & Tripping
ParameterValue
Overload release setting range2.2 ... 3.2 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)8 kA
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1021-1DA10-ZW95 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1021-1DA10-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)
3RV1021-1DA10-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
3RV1021-1DA10-ZW95 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1021-1DA10-ZW95 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

Motor Protection Circuit Breaker — 3.2 A, Class 10, 100 kA

The Siemens SIRIUS 3RV1021-1DA10-ZW95 is a 3-pole motor protection circuit breaker rated for a continuous current of 3.2 A, with a Class 10 trip characteristic — meaning it will trip within 10 seconds at 7.2× the thermal setting, matching the startup profile of standard induction motors up to 1.1 kW at 400 V.

Snaps onto 35 mm DIN rail per EN 50022; screw-type terminals on both main and auxiliary circuits accept 1 to 2.5 mm² solid or stranded (two conductors per clamp) or 2.5 to 6 mm² for larger feeds.

Rated insulation voltage 690 V; surge voltage resistance 6 kV. Maximum operating frequency in AC-3 duty is 15 operations per hour. Power loss per pole in hot operating state is 2.4 W, total 7.25 W — factor into enclosure thermal calculations. Shock resistance rated at 25g for 11 ms; auxiliary switch extension is supported.

Frequently asked questions

What conductor sizes does the screw terminal accept?

Solid or stranded: 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²) per clamp; AWG equivalent 2x (14 to 10).

Does 3RV1021-1DA10-ZW95 detect phase failure?

Yes, phase failure detection is built in — it trips faster than a thermal-only device on single-phasing.

MPN
3RV1021-1DA10-ZW95