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Siemens 3RV1021-0BA10 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1021-0BA10 SIRIUS Motor Protection Circuit Breake

MPN3RV1021-0BA10

Siemens SIRIUS motor protection circuit breaker, 3RV1021-0BA10, 0.2 A rated current, Trip Class 10, 100 kA breaking capacity at 400 V, screw terminals, IP20 front.

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

Specifications

3RV1021-0BA10 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1021-0BA10 — Electrical
ParameterValue
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
3RV1021-0BA10 — Protection & Tripping
ParameterValue
Overload release setting range0.14 ... 0.2 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)100 kA
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1021-0BA10 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1021-0BA10 — 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)
3RV1021-0BA10 — 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
3RV1021-0BA10 — Environmental
ParameterValue
Max. installation altitude2 000 m
3RV1021-0BA10 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

Siemens 3RV1021-0BA10 SIRIUS Motor Protection Circuit Breaker

The Siemens 3RV1021-0BA10 is a SIRIUS motor protection circuit breaker designed for motor starting and protection in control panels. It carries a continuous rated current of 0.2 A and a Trip Class 10, meaning it will trip within 10 seconds at 7.2× the thermal setting — standard for protecting general-purpose induction motors against locked-rotor conditions. Rated breaking capacity hits 100 kA at 400 V AC, so it can safely clear a bolted fault on a high-capacity distribution bus without upstream fuses needing to intervene. Phase failure detection is built in, catching a lost leg before the motor single-phases to failure. Snap-on mounting to 35 mm DIN rail per EN 50022, screw terminals for main and auxiliary circuits. The 45 mm width fits standard panel slotting; any mounting position is allowed.

Sourcing & Lifecycle

RoHS compliance date marked 01.05.2012. Finger-safe touch protection and IP20 on the front face meet standard panel safety requirements.

Integration Notes

Mounts on 35 mm DIN rail per EN 50022; screw terminals accept solid or stranded conductors up to 6 mm². The auxiliary switch slot is available for adding a remote status contact. Depth of 96 mm leaves clearance for standard enclosure depths. Ambient operating range -20 to +60 °C covers most indoor panel environments.

Frequently asked questions

Where can I buy 3RV1021-0BA10 and how do I get a price?

The part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quote.

What is the closest functional second-source for 3RV1021-0BA10?

The 3RV1011-0GA10 is a smaller-frame sibling in the same SIRIUS family, but it carries a different thermal rating and footprint — verify the current setting and panel cutout before substituting.

MPN
3RV1021-0BA10