Siemens SIRIUS motor protection circuit breaker, 3RV1021-4AA10-ZI41W96, 16 A continuous, 7.5 kW at 400 V, Class 10 trip class, 50 kA breaking capacity at 400 V AC.
| 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) | 9.25 W |
| Power loss, per pole (AC, hot) | 3.1 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 |
| Parameter | Value |
|---|---|
| Design Of The Product | for motor protection |
Siemens SIRIUS 3RV1021-4AA10-ZI41W96 is a motor protection circuit breaker rated for 16 A continuous current, switching 7.5 kW motor loads at 400 V AC with a Class 10 trip curve — fast enough to protect standard induction motors against locked-rotor conditions without nuisance tripping on startup inrush.
Depth is 96 mm, height 97 mm; any mounting position allowed, with 0 mm clearance needed at the sides or rear for ventilation.
50 kA at 400 V AC, 100 kA at 240 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC — sufficient for most industrial panel fault levels without upstream coordination.
Yes, phase failure detection is integrated — it trips if a phase is lost, preventing single-phase motor damage.
Sourced to order through independent industrial distribution. Submit an RFQ for current availability and pricing — 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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