Siemens SIRIUS motor protection circuit breaker, 3RV1021-4BA10-ZW96, 20 A continuous, 7.5 kW at 400 V, Class 10 trip, 50 kA breaking capacity, screw terminals, DIN rail mount.
| 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) | 10.5 W |
| Power loss, per pole (AC, hot) | 3.5 W |
| Parameter | Value |
|---|---|
| Trip class | CLASS 10 |
| Breaking capacity at 240 V (AC) | 100 kA |
| Breaking capacity at 400 V (AC) | 50 kA |
| Breaking capacity at 500 V (AC) | 10 kA |
| Breaking capacity at 690 V (AC) | 4 kA |
| Phase-failure detection | Yes |
| Ground-fault detection | No |
| Parameter | Value |
|---|---|
| Endurance, main contacts (typ.) | 100 000 |
| Switching frequency, AC-3 (max.) | 15 1/h |
| 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) |
| Parameter | Value |
|---|---|
| Height | 97 mm |
| Width | 45 mm |
| Depth | 96 mm |
| 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 |
The Siemens SIRIUS 3RV1021-4BA10-ZW96 is a motor protection circuit breaker rated for 20 A continuous and 7.5 kW at 400 V AC-3 duty.
Screw terminals on the main circuit accept solid or stranded copper: 2x (1…2.5 mm²) and 2x (2.5…6 mm²). Zero clearance needed at the sides or rear — stack them tight in a panel. IP20 on the front face keeps fingers out; fine for enclosed industrial control panels.
20 A continuous, 7.5 kW at 400 V AC-3, Class 10 trip, 50 kA breaking capacity at 400 V, phase failure detection included.
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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