Siemens SIRIUS 3RV2031-4KA10 motor protection circuit breaker, Trip Class 10, 55 mm wide, screw terminals up to 50 mm², interrupting capacity 65 kA at 400 V AC.
| Parameter | Value |
|---|---|
| Series | SIRIUS |
| Product designation | Circuit breaker |
| Frame size | S2 |
| Parameter | Value |
|---|---|
| Rated operational current (Ie) | 73 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) | 29.5 W |
| Power loss, per pole (AC, hot) | 9.8 W |
| Parameter | Value |
|---|---|
| Overload release setting range | 62 ... 73 A |
| Instantaneous short-circuit trip current | 949 A |
| Trip class | CLASS 10 |
| Breaking capacity at 240 V (AC) | 65 kA |
| Breaking capacity at 400 V (AC) | 65 kA |
| Breaking capacity at 500 V (AC) | 8 kA |
| Breaking capacity at 690 V (AC) | 4 kA |
| Breaking capacity at 240 V | 65 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.) | 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) |
| Conductor range, AWG (main contacts) | 2x (18 ... 2), 1x (18 ... 1) |
| 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 interrupting capacity: 65 kA and 30 kA.
Any mounting position. Clearance above the device: 50 mm, below: 50 mm, side: 10 mm. Screw-type terminals accept up to 50 mm² (1x) or 2x 35 mm² solid/stranded, with M6 main contact bolts.
Lifecycle status is current — no discontinuation risk. Supplied against RFQ; specify quantity and target delivery window.
Depth 149 mm, width 55 mm, height 140 mm. Fits standard 55 mm DIN-rail cutouts with 50 mm clearance top and bottom.
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