Skip to main content
Siemens 3RV1021-0EA10-0FJ0 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-0EA10-0FJ0 SIRIUS Motor Protection Circuit B

MPN3RV1021-0EA10-0FJ0

Siemens SIRIUS motor protection circuit breaker, 3RV1021-0EA10-0FJ0, 0.4 A continuous current, CLASS 10 trip class, 100 kA breaking capacity at 400 V AC, 45 mm wide, screw and snap-on DIN rail mounting.

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

3RV1021-0EA10-0FJ0 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-0EA10-0FJ0 — 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
3RV1021-0EA10-0FJ0 — 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)100 kA
Breaking capacity at 690 V (AC)100 kA
Phase-failure detectionYes
Ground-fault detectionNo
3RV1021-0EA10-0FJ0 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)100 000
Switching frequency, AC-3 (max.)15 1/h
3RV1021-0EA10-0FJ0 — 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)
3RV1021-0EA10-0FJ0 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth96 mm
Mounting positionany
3RV1021-0EA10-0FJ0 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
3RV1021-0EA10-0FJ0 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

No ground-fault detection on this variant, so if you need that, look at the GF versions in the same family.

Width is 45 mm, depth 96 mm, height 97 mm. Backwards clearance is 0 mm and side clearance is 0 mm, so it can butt directly against other devices on the rail — no air gap needed for cooling or arc containment. That's a space saver in tight enclosures.

Termination and wiring

Main circuit terminals are screw-type, accepting solid or stranded conductors: 2x 1…2.5 mm² and 2x 2.5…6 mm². For AWG, that's 2x 14…10. Finely stranded with ferrule is the same range. The auxiliary switch is present — it's integrated, so you don't need a separate side-mount block for status feedback. No additional auxiliary contacts are included, but the built-in switch covers the basic NO/NC for the control circuit.

Environmental and mechanical limits

Shock resistance is 25 g for 11 ms — tough enough for machinery-mounted panels. Front face is IP20 — finger-safe but not sealed; install inside a cabinet rated for the environment.

Frequently asked questions

Where can I buy 3RV1021-0EA10-0FJ0 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 — submit an RFQ for a firm price and lead time.

What is 3RV1021-0EA10-0FJ0's listed depth?

The depth is 96 mm. Combined with the 45 mm width and 97 mm height, it fits a standard 45 mm-wide DIN-rail slot.

What conductor sizes does the 3RV1021-0EA10-0FJ0 accept?

Solid and stranded conductors: 2x 1…2.5 mm² and 2x 2.5…6 mm². For AWG, the main contacts accept 2x 14…10. Finely stranded with ferrule uses the same range.

Will 3RV1021-0EA10-0FJ0 drop into a panel specified around 3RV1011-0GA10 without rewiring?

Both share the same 45 mm width and DIN-rail mounting, so the footprint and rail clip are identical. However, the 3RV1021-0EA10-0FJ0 has a continuous current rating of 0.4 A — verify that the motor FLA matches before substituting, because the 3RV1011-0GA10 may have a different rating. Terminal wire ranges are the same.

MPN
3RV1021-0EA10-0FJ0