Product Overview
The CHINT NXB-63 C32 4-Pole Miniature Circuit Breaker (MCB) is designed to provide overload and short-circuit protection in four-pole electrical distribution circuits. With a rated current of 32A, C-type tripping characteristic and 6kA breaking capacity, it is suitable for use in electrical distribution boards, control panels and commercial and industrial installations.
Its compact modular design supports DIN-rail installation and convenient integration into electrical distribution systems.
| Parameter | Details |
|---|---|
| Brand | CHINT |
| Product Series | NXB-63 |
| Product Category | Electrical Protection Devices |
| Product Type | Miniature Circuit Breaker (MCB) |
| Model | C32 |
| Pole Configuration | 4P – Four Pole |
| Rated Current | 1, 2, 3, 4, 6, 10, 16, 20, 25, 32,40, 50, 63Amp |
| Breaking Capacity | 6kA |
| Tripping Curve | C-Type |
| Product Reference | Confirm against original 4P product label |
The following specifications combine CHINT’s published NXB-63 series data with the exact 4P C32 6kA catalogue variant.
| Parameter | Specification |
|---|---|
| Brand | CHINT |
| Series | NXB-63 |
| Product Type | Miniature Circuit Breaker |
| Model | NXB-63 4P C32 6kA |
| Manufacturer Product Code | 814251 |
| Number of Poles | 4P |
| Rated Current (In) | 1, 2, 3, 4,6, 10, 16, 20, 25, 32, 40,50, 63 Amps |
| Rated Voltage (Ue) | 380 / 400 / 415V AC |
| Rated Frequency | 50/60Hz |
| Tripping Characteristic | C Curve |
| Instantaneous Magnetic Trip Range | 5–10 × In |
| Rated Short-Circuit Breaking Capacity (Icn) | 6kA |
| Rated Service Short-Circuit Capacity (Ics) | 6kA (series published value; confirm exact variant documentation) |
| Rated Insulation Voltage (Ui) | 500V |
| Rated Impulse Withstand Voltage (Uimp) | 4kV |
| Protection | Overload & Short Circuit |
| Positive Isolation | Yes |
| Compliance Standard | IEC/EN 60898-1 |
| Certification | CE (series certification) |
| Mechanical Life | 20,000 operations |
| Electrical Life | 10,000 operations |
| Mounting | 35mm DIN Rail, TH35-7.5 |
| Connection | Screw Terminals |
| Wiring Direction | Top or Bottom |
| Terminal Capacity | 1–25mm² |
| Recommended Tightening Torque | 2.0 N·m |
| Protection Degree | IP20 (direct mounting); IP40 (inside suitable enclosure) |
| Pollution Degree | Class II |
| Operating Temperature | −35°C to +70°C |
| Storage Temperature | −35°C to +85°C |
| Maximum Installation Altitude | 2,000m |
Sources: CHINT official product information and catalogue, plus the exact 4P C32 6kA catalogue listing.
CHINT global+3
| Parameter | Specification |
|---|---|
| Number of Poles | 4P |
| Modular Width | 72mm |
| Overall Height | Approximately 81mm |
| Overall Depth | Approximately 77.8mm |
| DIN Rail | TH35-7.5 |
| Terminal Type | Screw Connection |
| Cable Entry | Top or Bottom |
Dimensions are catalogue values for the NXB-63 multipole design. Confirm tolerances and clearances against the manufacturer’s drawing before panel fabrication.
Miniature circuit breaker+1
| Parameter | Details |
|---|---|
| Thermal Protection | Overload protection |
| Magnetic Protection | Short-circuit protection |
| Tripping Curve | C |
| Rated Current | 32A |
| Magnetic Trip Range | 160–320A |
| Breaking Capacity | 6,000A |
| Switching | Four-pole operation |
| Applications | AC distribution circuits |
The magnetic trip range is calculated from the C-curve range of 5–10 times rated current. Actual tripping time depends on the fault current and the applicable trip curve.
Miniature circuit breaker+1
Overload Protection: Protects electrical circuits against sustained overcurrent conditions.
Short-Circuit Protection: Provides 6kA short-circuit breaking capacity.
Four-Pole Configuration: Designed for switching three phases and neutral in compatible four-pole circuits.
C-Type Tripping: Suitable for circuits with moderate starting and inrush currents.
Positive Isolation: Provides circuit isolation when switched OFF.
Compact Construction: Modular design for efficient distribution-board installation.
DIN-Rail Mounting: Compatible with standard 35mm DIN rails.
Long Mechanical Life: Rated for up to 20,000 operating cycles.
CHINT global+1
The CHINT NXB-63 4P C32 MCB is suitable for:
Three-phase, four-wire electrical distribution boards.
Commercial building electrical panels.
Industrial distribution and control panels.
Machinery and equipment branch circuits.
HVAC and auxiliary power distribution.
Three-phase circuits requiring four-pole disconnection.
General-purpose AC electrical distribution.
Important: Confirm the neutral arrangement and switching requirements for the installation. Select the breaker in coordination with cable ampacity, load current, prospective fault current and upstream/downstream protection.
| Parameter | Value |
|---|---|
| Rated Current | 32A |
| Maximum Power Consumption per Pole | 6W |
| Number of Poles | 4 |
| Maximum Total Power Consumption | 24W |
The 24W figure is calculated from CHINT’s published maximum power consumption per pole at 32A. It is not the normal operating consumption at every load current.
Miniature circuit breaker+1
The NXB-63 series supports the following accessory families, subject to model compatibility:
| Accessory Code | Description |
|---|---|
| AX-X1 | Auxiliary Contact |
| AL-X1 | Alarm Contact |
| SHT-X1 | Shunt Trip |
| OVT-X1 | Overvoltage Trip |
| UVT-X1 | Undervoltage Trip |
| OUVT-X1 | Overvoltage/Undervoltage Trip |
CHINT global
Installation must be carried out by a qualified electrician.
Disconnect and verify isolation of the supply before installation.
Mount securely on a compatible 35mm DIN rail.
Use conductors suitable for the circuit current and installation conditions.
Follow the manufacturer’s terminal tightening torque.
Verify phase and neutral connections according to the wiring diagram.
Ensure that the prospective short-circuit current does not exceed the breaker’s breaking capacity.
Install inside a suitable electrical enclosure.
Perform insulation, continuity and functional checks before energizing.
| Website Field | Recommended Entry |
|---|---|
| Product Name | CHINT NXB-63 C32 4P 32A 6kA MCB |
| Brand | CHINT |
| Series | NXB-63 |
| Model | C32 |
| Pole Configuration | 4 Pole |
| Rated Current | 32A |
| Breaking Capacity | 6kA |
| Product Code | 814254 |
| Category | Electrical Protection Devices |
| Subcategory | Miniature Circuit Breakers |
| Product Condition | New – confirm stock |
| Warranty | Confirm with supplier |
| Country of Origin | Confirm from product packaging |
| Availability | Contact VITS |
| SEO Field | Recommended Content |
|---|---|
| Focus Keyphrase | CHINT NXB-63 C32 4P 32A 6kA MCB |
| SEO Title | CHINT NXB-63 C32 4P 32A 6kA MCB | VITS Pakistan |
| URL Slug | chint-nxb-63-c32-4p-32a-6ka-mcb |
| Meta Description | Buy CHINT NXB-63 C32 4P 32A 6kA MCB from VITS. Features C-curve tripping, overload and short-circuit protection for three-phase electrical distribution. |
| Image Alt Text | CHINT NXB-63 C32 4 Pole 32A 6kA Miniature Circuit Breaker |
| Image Title | CHINT NXB-63 C32 4P MCB |
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Q1. What is the rated current of the CHINT NXB-63 C32 4P MCB?
The rated current is 32A.
Q2. What does 4P mean?
4P means four poles, designed for switching four conductors in a compatible circuit.
Q3. What does C32 indicate?
C represents the C-type tripping characteristic, while 32 represents the rated current of 32A.
Q4. What is the breaking capacity?
The rated short-circuit breaking capacity is 6kA.
Q5. What is the rated voltage?
The catalogue lists 380V, 400V and 415V AC for multipole configurations.
Q6. Which standard does this product comply with?
IEC/EN 60898-1.
Q7. What type of mounting does it use?
It uses standard 35mm DIN-rail mounting.
| Specification | Details |
|---|---|
| Product Type | Miniature Circuit Breaker (MCB) |
| Breaking Capacity | 6kA |
| Compliance Standard | IEC 60898-1 |
| Certification | CE |
| Protection | Overload & Short Circuit |
| Rated Current | 1A–63A |
| Rated Frequency | 50/60Hz |
| Electromagnetic Release Type | B, C, D |
| Number of Poles | 1P, 2P, 3P, 4P |
| Rated Impulse Withstand Voltage (Uimp) | 4kV |
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