Types of Molded Case Circuit Breakers: MCCB Guide for Engineers
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ComPacT NSX630H 3P 630 A, 70 kA Icu, MicroLogic 2.3 trip unit.
The C63H32D630 is a Schneider Electric ComPacT NSX630H 3-pole moulded case circuit breaker rated 630 A at 40 °C, with a 70 kA breaking capacity (Icu) at 380/415 V AC. It uses the MicroLogic 2.3 trip unit, which provides an adjustable long-time overload stage (Ir 250…630 A), a fixed-delay short-time stage and a fixed instantaneous stage at 6900 A, and is rated for isolation up to 690 V AC.
The L-So-I MicroLogic 2.3 combines adjustable long-time overload protection (Ir 250…630 A) with a fixed-delay short-time stage and a fixed instantaneous stage at 6900 A. Pick this variant over the 5.3 E / 6.3 E versions when the board needs straightforward, non-communicating overcurrent protection without metering or zone-selective interlocking. At 70 kA Icu at 380/415 V AC, the H frame is the 70 kA/415 V workhorse of the 630 A ComPacT NSX range.
| Range | ComPacT |
|---|---|
| Product name | ComPacT NSX |
| Device short name | NSX630H |
| Product or Component Type | Circuit breaker |
| Device Application | Distribution |
| Poles description | 3P |
| Protected poles description | 3D |
| Line Rated Current | 630 A 104 °F (40 °C) |
| [Ue] rated operational voltage | 690 V AC 50/60 Hz |
| Network type | AC |
| Network Frequency | 50/60 Hz |
| Suitability for isolation | Yes EN/IEC 60947-2 |
| Utilisation category | Category A |
| Breaking capacity | 100 kA Icu 220/240 V AC 50/60 Hz IEC 60947-2, 70 kA Icu 380/415 V AC 50/60 Hz IEC 60947-2, 65 kA Icu 440 V AC 50/60 Hz IEC 60947-2, 50 kA Icu 500 V AC 50/60 Hz IEC 60947-2, 35 kA Icu 525 V AC 50/60 Hz IEC 60947-2, 20 kA Icu 660/690 V AC 50/60 Hz IEC 60947-2, 85 kA Icu 240 V AC 50/60 Hz UL 60947-4-1, 65 kA Icu 480 V AC 50/60 Hz UL 60947-4-1, 20 kA Icu 600 V AC 50/60 Hz UL 60947-4-1 |
| Breaking capacity code | H 70 kA 415 V AC |
| Trip unit name | MicroLogic 2.3 |
| Trip unit technology | Electronic |
| Trip unit protection functions | LSoI |
| Control Type | Toggle |
| Circuit breaker mounting mode | Fixed |
| [Ui] rated insulation voltage | 800 V AC 50/60 Hz |
|---|---|
| [Uimp] rated impulse withstand voltage | 8 kV |
| [Ics] rated service breaking capacity | 100 kA 220/240 V AC 50/60 Hz IEC 60947-2, 70 kA 380/415 V AC 50/60 Hz IEC 60947-2, 65 kA 440 V AC 50/60 Hz IEC 60947-2, 50 kA 500 V AC 50/60 Hz IEC 60947-2, 11 kA 525 V AC 50/60 Hz IEC 60947-2, 10 kA 660/690 V AC 50/60 Hz IEC 60947-2 |
| Mechanical durability | 15000 cycles |
| Electrical durability | 8000 cycles 440 V In/2, 4000 cycles 440 V In, 6000 cycles 690 V In/2, 2000 cycles 690 V In |
| Power dissipation per pole | 39.7 W |
| Mounting Support | Backplate |
| Mounting position | Horizontal and vertical, Flat on the back |
| Upside connection | Front |
| Downside connection | Front |
| Connection pitch | 1.8 in (45 mm) |
| Protection type | L : for overload protection (long time), So : for short time short-circuit protection with fixed delay, I : for instantaneous short-circuit protection |
| Trip unit rating | 630 A 104 °F (40 °C) |
| Long-time pick-up adjustment type Ir (thermal protection) | Adjustable 9 settings |
| [Ir] long-time protection pick-up adjustment range | 250...630 A |
| Long-time protection delay adjustment type tr | Fixed |
| [tr] long-time delay adjustment range | 400 s 1.5 x Ir, 16 s 6 x Ir, 11 s 7.2 x Ir |
| Thermal memory | 20 minutes before and after tripping |
| Short-time protection pick-up adjustment type Isd | Adjustable 9 settings |
| [Isd] Short-time protection pick-up adjustment range | 1.5...10 x Ir |
| Short-time protection delay adjustment type tsd | Fixed |
| Instantaneous protection pick-up adjustment type Ii | Fixed |
| [Ii] instantaneous protection pick-up adjustment range | 6900 A |
| Earth-leakage protection | Without |
| Zone selective interlocking ZSI | Without |
| Number of slots | 6 |
| Local signalling | Flashing LED (green) for ready to operate, LED 105 % Ir (red) for overload, LED 90 % Ir (orange) for overload |
| Width (W) | 5.5 in (140 mm) |
| Height (H) | 10.04 in (255 mm) |
| Depth (D) | 4.3 in (110 mm) |
| Net Weight | 13.7 lb(US) (6.2 kg) |
| Standards | EN/IEC 60947-2 |
|---|---|
| Overvoltage category | III |
| Electrical shock protection class | Class II front face |
| Pollution degree | 3 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 | -13…158 °F (-25…70 °C) |
| Ambient Air Temperature for Storage | -58…185 °F (-50…85 °C) |
| Relative humidity | 0…95 % |
| Operating altitude | 0...6561.68 ft (0...2000 m) without derating, 2000 m...5000 m with derating |
| Part number | C63H32D630 |
|---|---|
| Type designation | NSX630H |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606482002791 |
| Warranty (in months) | 18 |
|---|
| Country of origin | FR |
|---|---|
| Shipping weight | 6.2 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 NSX630H is 630 A.
The rated operational voltage of NSX630H is 690 V AC.
The tariff (HS) code on file for NSX630H is 85362090.
The EAN (GTIN) of NSX630H is 3606482002791.
NSX630H 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.
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