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Siemens 3RV1021-1KA15-ZW96 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-1KA15-ZW96 SIRIUS Motor Protection Circuit B

MPN3RV1021-1KA15-ZW96

Siemens SIRIUS motor protection circuit breaker, 3RV1021-1KA15-ZW96, 12.5 A continuous, CLASS 10 trip, 100 kA at 400 V AC, screw and 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

3RV1021-1KA15-ZW96 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-1KA15-ZW96 — 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)9.25 W
Power loss, per pole (AC, hot)3.1 W
3RV1021-1KA15-ZW96 — 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)42 kA
Breaking capacity at 690 V (AC)6 kA
Phase-failure detectionYes
Ground-fault detectionNo
3RV1021-1KA15-ZW96 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)100 000
Switching frequency, AC-3 (max.)15 1/h
3RV1021-1KA15-ZW96 — 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)
3RV1021-1KA15-ZW96 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth96 mm
Mounting positionany
3RV1021-1KA15-ZW96 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
3RV1021-1KA15-ZW96 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

It includes phase failure detection and an integrated auxiliary switch, making it suitable for three-phase motor circuits where loss-of-phase protection is required.

CLASS 10 trip characteristic protects motors with short starting times. Breaking capacity: 100 kA at 240 V and 400 V AC, 42 kA at 500 V, and 6 kA at 690 V.

Front protection is IP20; the enclosure is rated for any mounting position, with 0 mm clearance required at the sides and back. Terminals accept solid conductors: 2x (0.5–1.5 mm²) and 2x (0.75–2.5 mm²); stranded: 2x (1–2.5 mm²) and 2x (2.5–6 mm²).

Frequently asked questions

What is the closest functional second-source for 3RV1021-1KA15-ZW96?

The closest functional peer is the 3RV6011-0CA10, which shares the same SIRIUS motor protection breaker class and DIN-rail footprint. Verify the 3RV6011's current rating and trip class against your load before substituting.

What is 3RV1021-1KA15-ZW96's listed depth?

The depth is 96 mm, with a width of 45 mm and height of 97 mm.

What solid conductor sizes does 3RV1021-1KA15-ZW96 accept?

It accepts solid conductors: 2x (0.5–1.5 mm²) and 2x (0.75–2.5 mm²). Stranded conductors: 2x (1–2.5 mm²) and 2x (2.5–6 mm²).

MPN
3RV1021-1KA15-ZW96