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This ComPacT NSX250 is a complete 4P fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all standard and specific applications. The breaking capacity (Icu) is 50kA rms at 1500DC. The operational voltage is 1500VDC. This product embeds a 125A rating thermal-magnetic trip unit (TMD). TMD trip unit provides an adjustable thermal overload protection and a fixed magnetic protection.
Products specifications
| Attribute name | Attribute value |
|---|---|
| Main | |
| Device short name | NSX250 DC EP |
| Device application | marine application, photovoltaic |
| Breaking capacity code | F 20 kA 1500 V DC |
| Suitability for isolation | yes conforming to EN/IEC 60947-2 |
| Breaking capacity | 50 kA Icu at 1100 V DC 4 poles in series conforming to IEC 60947-2, 20 kA Icu at 1500 V DC 4 poles in series conforming to IEC 60947-2 |
| Mounting mode | fixed |
| Control type | toggle |
| Range | ComPacT new generation |
| Range of product | ComPacT NSX250/500 DC EP |
| Trip unit name | TM-DC |
| Trip unit technology | thermal-magnetic |
| Poles description | 4P |
| Utilisation category | category A |
| Product name | ComPacT NSX DC EP |
| Product or component type | circuit breaker |
| Network type | DC |
| Trip unit protection functions | LI |
| [Ue] rated operational voltage | 1500 V DC |
| [In] rated current | 125 A at 40 °C |
| Complementary | |
| [Uimp] rated impulse withstand voltage | 8 kV conforming to IEC 60947-2 |
| Compatibility code | NSX250 |
| Mechanical durability | 10000 cycles |
| Trip unit rating | 125-125 A at 40 °C |
| Upside connection | front |
| Long time pick-up adjustment type Ir | adjustable |
| Long time pick-up adjustment range | 0.7...1 x In |
| Electrical durability | 4500 cycles at 1500 V In |
| Protection type | I : for short-circuit protection (magnetic), L : for overload protection (thermal) |
| Downside connection | front |
| Earth-leakage protection | without |
| Height | 161 mm |
| [Ics] rated service breaking capacity | 20 kA at 1100 V DC conforming to IEC 60947-2, 20 kA at 1500 V DC conforming to IEC 60947-2 |
| Depth | 86 mm |
| Width | 140 mm |
| Mounting position | flat on the back, horizontal and vertical |
| [Ui] rated insulation voltage | 1600 V DC conforming to IEC 60947-2 |
| Net weight | 2.8 kg |
| Instantaneous pick-up adjustment type Ii | fixed |
| Long time delay adjustment type | fixed |
| Instantaneous pick-up adjustment range | 750 A |
| Mounting support | backplate |
| Environment | |
| Relative humidity | 0-95 % |
| Ambient air temperature for storage | -50-85 °C |
| Pollution degree | 3 conforming to IEC 60664-1 |
| IP degree of protection | IP40 conforming to IEC 60529 |
| Ambient air temperature for operation | -25-70 °C |
| IK degree of protection | IK07 conforming to IEC 62262 |
| Operating altitude | 2000 m...5000 m with derating, 0...2000 m without derating |
| Standards | EN/IEC 60947 |
| Product certifications | CCC |
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