Circuit breaker, ComPacT NSX400S DC, 100kA/750VDC, 3 poles, TM-DC trip unit 400A
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Quick facts
| Availability | Confirmed on request |
| Category | ComPacT for DC networks, new generation |
| Lifecycle | active |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
| Weight | 8 kg |
Shipping & availability
When can C40S3TM400D be shipped?
C40S3TM400D is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up C40S3TM400D in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for C40S3TM400D and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for C40S3TM400D, subject to availability and destination.
ComPacT NSX 400S DC is a complete 3 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 100kA 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 140mm x 110mm) comes with a variety of optional functions and accessories. It is compliant with international standards (IEC 60947), CCC, EAC and marine specifications.
Specifications
Specifications
| Range | ComPacT |
| Product name | ComPacT NSX DC |
| Device short name | NSX400S DC |
| Product or component type | Circuit breaker |
| Device application | Distribution |
| Poles description | 3P |
| Protected poles description | 3D |
| [In] rated current | 400 A at 40 °C |
| [Ue] rated operational voltage | 750 V DC |
| Network type | DC |
| Suitability for isolation | Yes conforming to EN/IEC 60947-2 |
| Utilisation category | Category A |
| Breaking capacity | 100 kA Icu at 24...125 V DC 1 pole conforming to IEC 60947-2, 100 kA Icu at 250 V DC 1 pole conforming to IEC 60947-2, 100 kA Icu at 500 V DC 2 poles in series conforming to IEC 60947-2, 100 kA Icu at 750 V DC 3 poles in series conforming to IEC 60947-2 |
| Breaking capacity code | S 100 kA 500 V DC |
| Trip unit name | TM-DC |
| Trip unit technology | Thermal-magnetic |
| Trip unit protection functions | LI |
| Control type | Toggle |
| Circuit breaker mounting mode | Fixed |
| [Ui] rated insulation voltage | 750 V DC conforming to IEC 60947-2 |
| [Uimp] rated impulse withstand voltage | 8 kV conforming to IEC 60947-2 |
| [Ics] rated service breaking capacity | 100 kA at 24...125 V DC conforming to IEC 60947-2, 100 kA at 250 V DC conforming to IEC 60947-2, 100 kA at 500 V DC conforming to IEC 60947-2, 100 kA at 750 V DC conforming to IEC 60947-2 |
| Mechanical durability | 5000 cycles |
| Electrical durability | 2000 cycles at 750 V In/2, 1000 cycles at 750 V In |
| Mounting support | Backplate |
| Mounting position | Horizontal and vertical, Flat on the back |
| Upside connection | Front |
| Downside connection | Front |
| Connection pitch | 45 mm |
| Protection type | L : for overload protection (thermal), I : for short-circuit protection (magnetic) |
| Trip unit rating | 400 A at 40 °C |
| Long-time pick-up adjustment type Ir (thermal protection) | Adjustable |
| [Ir] long-time protection pick-up adjustment range | 0.7...1 x In |
| Long-time protection delay adjustment type tr | Fixed |
| Instantaneous protection pick-up adjustment type Ii | Adjustable |
| [Ii] instantaneous protection pick-up adjustment range | 2.5...5 x In |
| Earth-leakage protection | Without |
| Number of slots | 6 slot(s) |
| Width (W) | 140 mm |
| Height (H) | 255 mm |
| Depth (D) | 110 mm |
| Net weight | 8.0 kg |
| Standards | EN/IEC 60947-2 |
| Pollution degree | 3 conforming to IEC 60664-1 |
| IP degree of protection | IP40 conforming to IEC 60529 |
| IK degree of protection | IK07 conforming to IEC 62262 |
| Ambient air temperature for operation | -25…70 °C |
| Ambient air temperature for storage | -50…85 °C |
| Relative humidity | 0…95 % |
| Operating altitude | 0...2000 m without derating, 2000 m...5000 m with derating |
| Unit Type of Package 1 | PCE |
| Number of Units in Package 1 | 1 |
| Package 1 Height | 29.200 cm |
| Package 1 Width | 15.300 cm |
| Package 1 Length | 15.000 cm |
| Package 1 Weight | 5.474 kg |
| Unit Type of Package 2 | S04 |
| Number of Units in Package 2 | 3 |
| Package 2 Height | 30.000 cm |
| Package 2 Width | 40.000 cm |
| Package 2 Length | 60.000 cm |
| Package 2 Weight | 17.072 kg |
| Unit Type of Package 3 | P12 |
| Number of Units in Package 3 | 12 |
| Package 3 Height | 45.000 cm |
| Package 3 Width | 80.000 cm |
| Package 3 Length | 120.000 cm |
| Package 3 Weight | 80.288 kg |
| Warranty (in months) | 18 |
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