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Siemens 3RV1021-0BA15 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-0BA15 SIRIUS Motor Protection Breaker, 0.2 A

MPN3RV1021-0BA15

Siemens SIRIUS 3RV1021-0BA15 motor protection circuit breaker, 0.2 A continuous rating, CLASS 10 trip class, 100 kA breaking capacity at 400 V AC, screw and snap-on DIN rail mount.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RV1021-0BA15 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-0BA15 — 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
3RV1021-0BA15 — 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
3RV1021-0BA15 — Endurance & Switching
ParameterValue
Endurance, main contacts (typ.)100 000
Switching frequency, AC-3 (max.)15 1/h
3RV1021-0BA15 — Connections
ParameterValue
Main-circuit connector arrangementfront side
Conductor cross-section, finely stranded with ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
3RV1021-0BA15 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth96 mm
Mounting positionany
3RV1021-0BA15 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
3RV1021-0BA15 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

Motor protection breaker, 0.2 A, CLASS 10

The Siemens SIRIUS 3RV1021-0BA15 is a motor protection circuit breaker rated for 0.2 A continuous current with a CLASS 10 trip characteristic. That CLASS 10 rating means it disconnects within 10 seconds at 7.2× rated current — fast enough to protect standard induction motors during locked-rotor conditions without nuisance tripping on normal startup inrush. The 100 kA breaking capacity at 400 V AC holds across the full voltage range up to 690 V, so it can be placed upstream of smaller contactors without requiring a separate backup fuse for short-circuit coordination in most industrial panels.

Solid conductors from 0.5 to 2.5 mm², stranded up to 6 mm². No clearance needed at the sides or rear, so it packs tight in a crowded enclosure.

Frequently asked questions

What is the breaking capacity of 3RV1021-0BA15?

100 kA at 240 V, 400 V, 500 V, and 690 V AC (–). That's a high SCCR rating for a 0.2 A breaker — it can handle severe fault currents without upstream fuses in most panel designs.

Where can I buy 3RV1021-0BA15?

Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time.

Does 3RV1021-0BA15 have phase failure protection?

Yes, phase failure detection is included. It will trip if one phase is lost, protecting the motor from single-phasing damage.

MPN
3RV1021-0BA15