Schneider C25B44V250 Compact Nsx, New Generation — now discontinued, supplied from remaining surplus and broker stock.
| Parameter | Value |
|---|---|
| Earth-leakage protection class / type | Class A |
| Trip unit technology | Electronic |
| Local signalling / indication | Flashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload |
| Parameter | Value |
|---|---|
| Rated current (In) | 250 A at 40 °C |
| Rated operational voltage (Ue) | 440 V AC 50/60 Hz |
| Poles description | 4P |
| Neutral pole position | Left |
| Network type | AC |
| Network frequency | 50/60 Hz |
| Rated insulation voltage (Ui) | 500 V AC 50/60 Hz |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Overvoltage category | IV |
| Electrical durability | 20000 cycles at 440 V In/2 10000 cycles at 440 V In 10000 cycles at 690 V In/2 5000 cycles at 690 V In |
| Mechanical durability (operating cycles) | 20000 cycles |
| Parameter | Value |
|---|---|
| Product name | ComPacT NSX |
| Product / component type | Earth leakage circuit breaker |
| Product range / family | ComPacT |
| Device short name | NSX250B |
| Parameter | Value |
|---|---|
| Mounting support | Backplate |
| Mounting position | Horizontal and vertical Flat on the back |
| Control type | Toggle |
| Parameter | Value |
|---|---|
| Operating ambient temperature | -25...70 °C |
| Storage ambient temperature | -50...85 °C |
| IP degree of protection | IP40 conforming to IEC 60529 |
| Pollution degree | 3 conforming to IEC 60664-1 |
| Relative humidity | 0...95 % |
| Operating altitude | 0...2000 m without derating 2000 m...5000 m with derating |
| Parameter | Value |
|---|---|
| Standards | EN/IEC 60947-2 |
The C25B44V250 is a Schneider ComPacT NSX molded case circuit breaker rated 250 A at 40 °C with a 40 kA breaking capacity, built for distribution duty on a 4-pole AC network. It carries a MicroLogic 4.2 electronic trip unit covering overload (L), short-time (So), instantaneous (I), and earth-leakage (R) protection, and is listed to EN/IEC 60947-2.
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