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ComPacT NSX 400F DC is a complete 4 poles fixed circuit breaker designed to optimize space and breaking capacity. It's an optimal choice for applications using DC voltages. The breaking capacity (Icu) is 36kA rms at 750VDC. The operational voltage is 750VDC. This product embeds a 400A rating thermal-magnetic trip unit (TM-DC). TM-DC trip unit provides an adjustable thermal overload protection and an adjustable magnetic protection. This 4 poles version (255mm x 185mm x 110mm) comes with a variety of optional functions and accessories. It is compliant with international standards (IEC 60947), CCC, EAC and marine specifications.
Products specifications
| Attribute name | Attribute value |
|---|---|
| Main | |
| Device short name | NSX400F DC |
| Device application | distribution |
| Breaking capacity code | F 36 kA 750 V DC |
| Suitability for isolation | yes conforming to EN/IEC 60947-2 |
| Breaking capacity | 36 kA Icu at 750 V DC 3 poles in series conforming to IEC 60947-2, 36 kA Icu at 500 V DC 2 poles in series conforming to IEC 60947-2, 36 kA Icu at 250 V DC 1 pole conforming to IEC 60947-2, 36 kA Icu at 24...125 V DC 1 pole conforming to IEC 60947-2 |
| Mounting mode | fixed |
| Control type | toggle |
| Range | ComPacT new generation |
| Protected poles description | 4D |
| Range of product | ComPacT NSX400...630 DC new generation |
| Trip unit name | TM-DC |
| Trip unit technology | thermal-magnetic |
| Neutral position | left |
| Poles description | 4P |
| Utilisation category | category A |
| Product name | ComPacT NSX DC new generation |
| Product or component type | circuit breaker |
| Network type | DC |
| Trip unit protection functions | LI |
| [Ue] rated operational voltage | 750 V DC |
| [In] rated current | 400 A at 40 °C |
| Complementary | |
| [Uimp] rated impulse withstand voltage | 8 kV conforming to IEC 60947-2 |
| Connection pitch | 45 mm |
| Compatibility code | NSX400 |
| Mechanical durability | 5000 cycles |
| Trip unit rating | 400-400 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 | 1000 cycles at 750 V In, 2000 cycles at 750 V In/2 |
| Protection type | I : for short-circuit protection (magnetic), L : for overload protection (thermal) |
| Downside connection | front |
| Earth-leakage protection | without |
| Height | 255 mm |
| [Ics] rated service breaking capacity | 36 kA at 750 V DC conforming to IEC 60947-2, 36 kA at 500 V DC conforming to IEC 60947-2, 36 kA at 250 V DC conforming to IEC 60947-2, 36 kA at 24...125 V DC conforming to IEC 60947-2 |
| Depth | 110 mm |
| Width | 185 mm |
| Mounting position | flat on the back, horizontal and vertical |
| [Ui] rated insulation voltage | 750 V DC conforming to IEC 60947-2 |
| Net weight | 8.4 kg |
| Instantaneous pick-up adjustment type Ii | adjustable |
| Long time delay adjustment type | fixed |
| Number of slots | 6 slot(s) |
| Instantaneous pick-up adjustment range | 2.5...5 x In |
| 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 |
| Overvoltage category | class II |
| Operating altitude | 2000 m...5000 m with derating, 0...2000 m without derating |
| Electrical shock protection class | class II |
| Standards | EN/IEC 60947 |
| Product certifications | Marine, EAC, CCC |
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