Chint NB1-63CH2P25 2 pole miniature circuit breaker with 25 A rated current, C curve tripping characteristic and 10 kA breaking capacity for overload and short-circuit protection.
£22.95
The Chint NB1-63CH2P25 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 provides reliable circuit protection for residential, commercial and industrial electrical installations where a higher breaking capacity is required.
This 2 pole C curve MCB features a 25 A rated current, making it suitable for socket circuits, radial circuits, control circuits, auxiliary supplies and lightly inductive loads. The C curve tripping characteristic allows for moderate inrush currents, making it suitable for mixed resistive and inductive applications.
With a rated short-circuit breaking capacity of 10 kA and a standard 35 mm DIN rail mounting format, the NB1-63CH2P25 is easy to install within consumer units, distribution boards and electrical control panels. Its 2 pole design enables simultaneous disconnection of both conductors for improved circuit isolation.
Miniature circuit breakers such as the Chint NB1-63CH2P25 automatically disconnect electrical circuits when overloads or short circuits occur. This helps protect wiring, connected equipment and electrical installations from damage caused by excessive current.
The C curve characteristic makes this MCB suitable for circuits with moderate inrush currents, including socket circuits, radial circuits, control panels, auxiliary supplies, relays, small transformers and mixed electrical loads where a B curve device may nuisance trip.
| Current | 25 A |
|---|---|
| Manufacturer | Chint |
| Series | NB1-63H |
| Model | NB1-63CH2P25 |
| Product type | Miniature circuit breaker / MCB |
| Rated current | 25 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 | 6 kV |
| Protection rating | IP20 |
| Mounting type | 35 mm DIN rail |
| Standards | IEC / EN 60898-1 |
The Chint NB1-63CH2P25 protects electrical circuits against overloads and short circuits, particularly socket circuits, radial circuits, control circuits and auxiliary supplies.
This miniature circuit breaker has a rated current of 25 A.
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.
The NB1-63CH2P25 has a rated short-circuit breaking capacity of 10 kA.
The device mounts onto a standard 35 mm DIN rail inside consumer units, distribution boards and electrical panels.
Chint miniature circuit breakers are trusted by electricians, panel builders and maintenance engineers for dependable circuit protection across residential, commercial and industrial electrical installations.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...