Siemens 3RV2742-5GD10
MPN3RV2742-5GD10
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Circuit breaker size S3 for system protection with approval circuit breaker UL 489, CSA C22.2 No.5-02 A-release 40 A N-release 520 A screw terminal
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MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Series | SIRIUS |
| Product designation | Circuit breaker |
| Frame size | S3 |
Electrical
| Parameter | Value |
|---|---|
| Rated operational current (Ie) | 40 A |
| Rated voltage | 20 ... 600 V |
| Rated frequency | 50 ... 60 Hz |
| Rated insulation voltage (Ui), pollution degree 3 | 1 000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Number of poles | 3 |
| Power loss (AC, hot) | 18 W |
| Power loss, per pole (AC, hot) | 6 W |
Protection & Tripping
| Parameter | Value |
|---|---|
| Instantaneous short-circuit trip current | 520 A |
| Breaking capacity at 240 V (AC) | 100 kA |
| Breaking capacity at 400 V (AC) | 100 kA |
| Breaking capacity at 240 V | 100 kA |
| Short-circuit trip type | magnetic |
| Overload release type | thermal |
| Short-circuit protection | Yes |
| Phase-failure detection | No |
| Ground-fault detection | No |
| Auxiliary switch extendable | Yes |
Endurance & Switching
| Parameter | Value |
|---|---|
| Endurance, main contacts (typ.) | 25 000 |
| Endurance, auxiliary contacts (typ.) | 25 000 |
Connections
| Parameter | Value |
|---|---|
| Main-circuit terminal type | screw-type terminals |
| Main-circuit connector arrangement | Top and bottom |
| Conductor cross-section, solid / stranded | 2x (2,5 ... 50 mm²), 1x (10 ... 70 mm²) |
| Conductor cross-section, finely stranded with ferrule | 2x (2.5 ... 35 mm²), 1x (2.5 ... 50 mm²) |
| Conductor range, AWG (main contacts) | 8 |
Mechanical
| Parameter | Value |
|---|---|
| Height | 170 mm |
| Width | 70 mm |
| Depth | 176 mm |
| Mounting method | screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715 |
| Mounting position | any |
Environmental
| 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 |
Specifications
| Parameter | Value |
|---|---|
| Design Of The Product | For system protection according to UL 489/CSA C22.2 No. 5 |
MPN
3RV2742-5GD10