Siemens SIRIUS 3RV2032-4JA10-ZX95 motor protection circuit breaker, Class 10, 50 kA at 400 V, screw terminals, DIN rail mount.
| Parameter | Value |
|---|---|
| Series | SIRIUS |
| Product designation | Circuit breaker |
| Frame size | S2 |
| Parameter | Value |
|---|---|
| Rated operational current (Ie) | 65 A |
| Rated voltage | 20 ... 690 V |
| Rated voltage, AC-3 (max.) | 690 V |
| Rated frequency | 50 ... 60 Hz |
| Rated insulation voltage (Ui), pollution degree 3 | 690 V |
| Rated impulse withstand voltage (Uimp) | 6 kV |
| Number of poles | 3 |
| Power loss (AC, hot) | 26 W |
| Power loss, per pole (AC, hot) | 8.7 W |
| Parameter | Value |
|---|---|
| Overload release setting range | 54 ... 65 A |
| Instantaneous short-circuit trip current | 845 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) | 10 kA |
| Breaking capacity at 690 V (AC) | 6 kA |
| Breaking capacity at 240 V | 100 kA |
| Breaking capacity at 690 V | 4 kA |
| Short-circuit trip type | magnetic |
| Overload release type | thermal |
| Short-circuit protection | Yes |
| Phase-failure detection | Yes |
| Ground-fault detection | No |
| Auxiliary switch extendable | Yes |
| Parameter | Value |
|---|---|
| Endurance, main contacts (typ.) | 20 000 |
| Endurance, auxiliary contacts (typ.) | 20 000 |
| Switching frequency, AC-3 (max.) | 15 1/h |
| Parameter | Value |
|---|---|
| Main-circuit terminal type | screw-type terminals |
| Main-circuit connector arrangement | Top and bottom |
| Conductor cross-section, solid / stranded | 2x (1 ... 35 mm²), 1x (1 ... 50 mm²) |
| Conductor cross-section, finely stranded with ferrule | 2x (1 ... 25 mm²), 1x (1 ... 35 mm²) |
| Parameter | Value |
|---|---|
| Height | 140 mm |
| Width | 55 mm |
| Depth | 149 mm |
| Mounting method | screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715 |
| Mounting position | any |
| Parameter | Value |
|---|---|
| Operating temperature | -20 ... +60 °C |
| Storage temperature | -50 ... +80 °C |
| Transport temperature | -50 ... +80 °C |
| Relative humidity (operation) | 10 ... 95 % |
| Max. installation altitude | 2 000 m |
| Parameter | Value |
|---|---|
| Design Of The Product | For motor protection |
The main contacts use M6 screw terminals, and the wiring range accepts 2x 1–35 mm² or 1x 1–50 mm² solid or stranded — sized for the motor feed conductors typical at this rating.
Dimensions are 55 mm wide, 140 mm high, 149 mm deep — a standard SIRIUS 3RV2 footprint that drops into existing panel layouts without re-drilling the subplate.
This part is available to order through independent distribution. Submit an RFQ for a confirmed price and lead time — availability is confirmed at quote time.
The rated breaking capacity is 50 kA at 400 V, which covers most industrial panel fault levels without needing upstream fuses or a current-limiting breaker.
Yes, phase failure detection is included — the breaker will trip if one phase is lost, protecting the motor from single-phasing.
Trip Class 10, meaning it clears overloads within 10 seconds at 7.2× rated current — suitable for standard motor protection.
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