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Chint NB1-63CH2P63 MCB – 2P – C Curve – 63A – 10kA
Chint NB1-63CH2P63 2 pole miniature circuit breaker with 63 A rated current, C curve tripping characteristic and 10 kA breaking capacity for overload and short-circuit protection.
£10.33
Why Choose the Chint NB1-63CH2P63 Miniature Circuit Breaker?
The Chint NB1-63CH2P63 is a compact and dependable miniature circuit breaker (MCB) designed to protect low voltage electrical circuits against overloads and short circuits. As part of the Chint NB1-63H series, it delivers reliable circuit protection for residential, commercial and industrial electrical installations requiring a higher 10 kA breaking capacity.
This 2 pole C curve MCB features a 63 A rated current, making it ideal for higher current radial circuits, sub-main circuits, distribution boards and mixed inductive loads. The C curve tripping characteristic provides dependable protection where moderate inrush currents are expected, such as small motors, transformers and commercial electrical equipment.
With a rated short-circuit breaking capacity of 10 kA and standard 35 mm DIN rail mounting, the NB1-63CH2P63 is quick to install within consumer units, distribution boards and electrical control panels. Its 2 pole construction provides simultaneous isolation of both conductors for enhanced safety during maintenance.
Key Advantages
- Compact 2 pole miniature circuit breaker.
- 63 A rated current for higher current circuits.
- C curve trip characteristic for moderate inrush current loads.
- 10 kA short-circuit breaking capacity.
- Reliable overload and short-circuit protection.
- DIN rail installation in distribution boards and control panels.
Key Features
- Chint NB1-63H series MCB.
- 63 A rated current.
- C curve tripping characteristic.
- 2 pole configuration.
- 10 kA breaking capacity.
- 230 / 400 V AC rated voltage.
- 35 mm DIN rail mounting.
- Suitable for overload, short-circuit protection and circuit isolation.
Reliable Protection for Mixed Load Circuits
Miniature circuit breakers such as the Chint NB1-63CH2P63 automatically disconnect electrical circuits during overloads or short circuits, helping to protect wiring, equipment and electrical installations from damage.
The C curve characteristic makes this MCB suitable for circuits with moderate inrush currents, including higher current radial circuits, distribution boards, sub-main circuits, control panels, small motors and transformers where a B curve device may nuisance trip.
Typical Applications
- Residential consumer units.
- Commercial distribution boards.
- Industrial control panels.
- Higher current radial circuits.
- Sub-main circuits.
- Electrical installations requiring 63 A protection.
Technical Specifications
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| Current | 63 A | |
|---|---|---|
| Poles | 2-pole | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | Chint | |
| Series | NB1-63H | |
| Model | NB1-63CH2P63 | |
| Product type | Miniature circuit breaker / MCB | |
| Rated current | 63 A | |
| Number of poles | 2 pole | |
| Tripping characteristic | C curve | |
| Rated voltage | 230 / 400 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Rated short-circuit breaking capacity | 10 kA | |
| Rated insulation voltage | 500 V | |
| Rated impulse withstand voltage | 4 kV | |
| Protection rating | IP20 | |
| Mounting type | 35 mm DIN rail | |
| Standards | IEC / EN 60898-1 |
Frequently Asked Questions
What is the Chint NB1-63CH2P63 used for?
The Chint NB1-63CH2P63 protects electrical circuits against overloads and short circuits, particularly higher current radial circuits, distribution boards, sub-main circuits and control panels.
What current rating does this MCB have?
This miniature circuit breaker has a rated current of 63 A.
What does the C curve characteristic mean?
A C curve MCB trips between 5 and 10 times its rated current, making it suitable for mixed resistive and inductive loads with moderate inrush currents.
What is the breaking capacity of this MCB?
The NB1-63CH2P63 has a rated short-circuit breaking capacity of 10 kA.
How is the NB1-63CH2P63 installed?
The device mounts onto a standard 35 mm DIN rail inside consumer units, distribution boards and electrical panels.
Trusted by Electrical Professionals Worldwide
Chint miniature circuit breakers are trusted by electricians, panel builders and maintenance engineers for dependable circuit protection across residential, commercial and industrial electrical installations.
