Siemens SIRIUS motor protective circuit breaker, 3RV1021-0FA15-ZX95, 0.5 A continuous, CLASS 10 trip, 100 kA breaking capacity at 400 V AC, screw/snap-on 35 mm DIN rail.
| 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) | 5.5 W |
| Power loss, per pole (AC, hot) | 1.8 W |
| Parameter | Value |
|---|---|
| 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) | 100 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 (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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 |
The 3RV1021-0FA15-ZX95: Rated 0.5 A continuous, this breaker protects a motor drawing up to 0.12 kW at 400 V AC-3. Breaking capacity is 100 kA at 240 V, 400 V, 500 V, and 690 V AC. That covers most industrial fault-current scenarios up to the rated voltage; no need for upstream current-limiting fuses in a panel with sufficient SCCR. Any mounting position is allowed. Shock resistance is 25g for 11 ms. Front protection is IP20.
The closest functional sibling is the 3RV1011-0GA10, but the 3RV1021-0FA15-ZX95 includes a transverse auxiliary switch and phase failure detection that the 3RV1011-0GA10 may lack — confirm the auxiliary contact count and detection features before substituting.
This part is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time for any volume.
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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