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Siemens 3RV1021-0FA15 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-0FA15 SIRIUS Motor Protection Circuit Breake

MPN3RV1021-0FA15

Siemens SIRIUS 3RV1021-0FA15 motor protection circuit breaker, 0.5 A rated current, Class 10 trip, 100 kA breaking capacity at 400 V AC, screw-type terminals, IP20 front.

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

3RV1021-0FA15 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-0FA15 — 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)5.5 W
Power loss, per pole (AC, hot)1.8 W
3RV1021-0FA15 — Protection & Tripping
ParameterValue
Overload release setting range0.35 ... 0.5 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)100 kA
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1021-0FA15 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1021-0FA15 — 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)
3RV1021-0FA15 — 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
3RV1021-0FA15 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1021-0FA15 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

At 400 V AC it delivers 100 kA breaking capacity, and that figure holds across the voltage range up to 690 V AC — 100 kA at 240 V, 400 V, 500 V, and 690 V. That is a consistent fault-clearing capability that covers most industrial low-voltage distribution systems without needing an upstream current-limiting device. No ground-fault detection here — that is handled separately if your circuit requires it.

Depth is 96 mm from the rail surface to the front of the breaker.

Terminal wiring

Main circuit terminals accept solid conductors 2x (0.5... 1.5 mm²) or 2x (0.75... 2.5 mm²), and stranded conductors 2x (1... 2.5 mm²) or 2x (2.5... 6 mm²). AWG equivalents for the main contacts are 2x (14... 10). Auxiliary and control circuit terminals are also screw-type, with the same solid and stranded ranges.

Frequently asked questions

Where can I buy 3RV1021-0FA15 and what is the lead time?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no standard lead time is published here.

What is the breaking capacity of 3RV1021-0FA15 at 400 V?

100 kA at 400 V AC, and the same rating holds at 240 V, 500 V, and 690 V AC.

What wire sizes does the 3RV1021-0FA15 accept?

Main terminals accept solid 2x (0.5... 1.5 mm²) or 2x (0.75... 2.5 mm²), and stranded 2x (1... 2.5 mm²) or 2x (2.5... 6 mm²). AWG equivalents are 2x (14... 10).

Does 3RV1021-0FA15 include phase failure protection?

Yes, phase failure detection is built in. Ground fault detection is not included.

MPN
3RV1021-0FA15