Siemens SIRIUS motor protection circuit breaker, 3RV2031-4XA15, CLASS 10, 149 mm depth, 55 mm width, screw and snap-on DIN-rail mounting.
| Parameter | Value |
|---|---|
| Series | SIRIUS |
| Product designation | Circuit breaker |
| Frame size | S2 |
| Parameter | Value |
|---|---|
| Rated operational current (Ie) | 59 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 | 49 ... 59 A |
| Instantaneous short-circuit trip current | 845 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 | 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.) | 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 (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 ... 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 |
Footprint is 55 mm wide by 149 mm deep by 140 mm tall — a single-module width on the rail. Mounting position any, which helps when you're squeezing it into a gland-plate corner. Upwards and downwards clearance is 50 mm each; at the side it's only 10 mm, so you can pack breakers tight in a multi-motor group.
Current production — the lifecycle stage is listed as active. This is not an NRND or obsolete part. No official successor exists because none is needed.
CLASS 10 trip class, 30 kA SCCR at 400 V, 100 kA at 240 V, phase failure detection. Mounts on 35 mm DIN rail, footprint is 55 mm wide by 149 mm deep.
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
Yes, phase failure detection is built into this motor protection circuit breaker.
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