Any mounting position allowed. Front face is IP20 — finger-safe but not washdown-rated. Three-pole main circuit with screw-type terminals accepting 1–6 mm² solid or stranded (AWG 14–10). Auxiliary switch slot is available for remote status feedback — order the contact block separately. Depth is 96 mm, width 45 mm, height 97 mm. Zero clearance needed at sides or rear for cooling — the 7.25 W total dissipation (2.4 W per pole) is low enough for dense panel layouts.
Siemens 3RV1021-1BA10-ZW95 SIRIUS Motor Protection Circuit B
MPN3RV1021-1BA10-ZW95
Siemens SIRIUS, motor protection circuit breaker, 3RV1021-1BA10-ZW95, 2 A continuous, CLASS 10, 100 kA at 400 V AC, screw terminals, IP20 front.
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Series | SIRIUS |
| Product designation | circuit breaker |
| Parameter | Value |
|---|---|
| Rated voltage | 690 V |
| Rated voltage, AC-3 (max.) | 690 V |
| Rated impulse withstand voltage (Uimp) | 6 000 V |
| Number of poles | 3 |
| Power loss (AC, hot) | 7.25 W |
| Power loss, per pole (AC, hot) | 2.4 W |
| Parameter | Value |
|---|---|
| Overload release setting range | 1.4 ... 2 A |
| Trip class | CLASS 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) | 8 kA |
| Phase-failure detection | Yes |
| Ground-fault detection | No |
| Auxiliary switch extendable | Yes |
| Parameter | Value |
|---|---|
| Auxiliary CO (changeover) contacts | 0 |
| Parameter | Value |
|---|---|
| Main-circuit terminal type | screw-type terminals |
| Main-circuit connector arrangement | front side |
| Conductor cross-section, finely stranded with ferrule | 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²) |
| Conductor range, AWG (main contacts) | 2x (14 ... 10) |
| Parameter | Value |
|---|---|
| Height | 97 mm |
| Width | 45 mm |
| Depth | 96 mm |
| Mounting method | screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| Mounting position | any |
| Parameter | Value |
|---|---|
| Operating temperature | -20 ... +60 °C |
| Storage temperature | -50 ... +80 °C |
| Transport temperature | -50 ... +80 °C |
| Max. installation altitude | 2 000 m |
| Parameter | Value |
|---|---|
| Design Of The Product | for motor protection |
Product details
Frequently asked questions
Will 3RV1021-1BA10-ZW95 drop into a panel specified for 3RV1011-1AA15?
Both are 45 mm wide SIRIUS motor protection breakers on the same DIN-rail footprint, but verify the 3RV1011-1AA15's current rating and trip class against your motor nameplate — the 3RV1021-1BA10-ZW95 is a 2 A CLASS 10 device, so it fits only if that matches the motor FLA and starting profile.
MPN
3RV1021-1BA10-ZW95