Types of Molded Case Circuit Breakers: MCCB Guide for Engineers
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ComPacT NSX630F DC 3P 600 A DC MCCB, 36 kA Icu, TM-DC trip unit.
The C63F3TM600D is a Schneider Electric ComPacT NSX630F DC 3-pole DC moulded case circuit breaker rated 600 A at 40 °C and 750 V DC, with a 36 kA breaking capacity (Icu) across the full DC voltage range. Its TM-DC thermal-magnetic trip unit gives adjustable overload and short-circuit protection without electronic components.
The TM-DC trip unit gives adjustable overload protection (Ir 0.7–1×In) and adjustable magnetic short-circuit protection (Ii 2.5–5×In) without electronic components, which keeps the device simple for DC distribution or photovoltaic combiner applications. The 36 kA breaking capacity stays constant from 24 V DC up to 750 V DC because the poles connect in series for the higher-voltage ratings — the series 3-pole connection is what delivers the full 36 kA at 750 V DC. Choose the 600 A rating over the other TM-DC variants in the same frame to match the DC feeder or string combiner current.
| Range | ComPacT |
|---|---|
| Product name | ComPacT NSX DC |
| Device short name | NSX630F DC |
| Product or component type | Circuit breaker |
| Device application | Distribution |
| Poles description | 3P |
| Protected poles description | 3D |
| [In] rated current | 600 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 | 36 kA Icu at 24...125 V DC 1 pole conforming to IEC 60947-2, 36 kA Icu at 250 V DC 1 pole 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 750 V DC 3 poles in series conforming to IEC 60947-2 |
| Breaking capacity code | F 36 kA 750 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 | 36 kA at 24...125 V DC conforming to IEC 60947-2, 36 kA at 250 V DC conforming to IEC 60947-2, 36 kA at 500 V DC conforming to IEC 60947-2, 36 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 | 600 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 |
| Part number | C63F3TM600D |
|---|---|
| Type designation | NSX630F DC |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| Warranty (in months) | 18 |
|---|
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 15.000 cm |
| Package 1 Width | 15.500 cm |
| Package 1 Length | 29.000 cm |
| Package 1 Weight | 5.471 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 | 17.063 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 | 80.252 kg |
| Shipping weight | 8.0 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of NSX630F DC is 600 A.
The tariff (HS) code on file for NSX630F DC is 85362090.
NSX630F DC ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
Compare MCCB types including thermal-magnetic, electronic trip, motor protection, current-limiting, and DC-rated units for industrial use. Shop at Stoklink.
Select the right MCCB with our engineer checklist covering IEC 60947-2, sizing, breaking capacity, trip units, and derating for industry. Shop at Stoklink.
IEC 60947-2 defines MCCB ratings Icu, Ics, Icw, utilization categories A and B, and type tests for low-voltage circuit breakers up to 1000V. Shop...