Siemens SIRIUS 3RV2031-4VA15 motor protection circuit breaker, Class 10 trip, 30 kA at 400 V breaking capacity.
| Parameter | Value |
|---|---|
| Series | SIRIUS |
| Product designation | Circuit breaker |
| Frame size | S2 |
| Parameter | Value |
|---|---|
| Rated operational current (Ie) | 45 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) | 24.5 W |
| Power loss, per pole (AC, hot) | 8.2 W |
| Parameter | Value |
|---|---|
| Overload release setting range | 35 ... 45 A |
| Instantaneous short-circuit trip current | 650 A |
| Trip class | CLASS 10 |
| Breaking capacity at 240 V (AC) | 100 kA |
| Breaking capacity at 400 V (AC) | 65 kA |
| Breaking capacity at 500 V (AC) | 10 kA |
| Breaking capacity at 690 V (AC) | 4 kA |
| Breaking capacity at 240 V | 100 kA |
| Breaking capacity at 690 V | 2 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.) | 50 000 |
| Endurance, auxiliary contacts (typ.) | 50 000 |
| 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 (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Conductor cross-section, finely stranded with ferrule | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Conductor range, AWG (main contacts) | 2x (18 ... 3), 1x (18 ... 2) |
| 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 |
Rated for 20 to 690 V AC.
If you're filling a BOM or stocking spares, this one's easy to get. No need to source NOS or wait on a broker for a liquidation score — the supply's steady.
Slips into a standard panel with 149 mm depth clear. Terminals accept 2x 0.5 to 2.5 mm² solid or stranded. Main contacts take M6 ring terminals for the power wiring.
Yes, phase failure detection is included, so you don't need a separate phase-loss relay.
Depth 149 mm, width 55 mm, height 140 mm. Mounts on 35 mm DIN rail.
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