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nxb-63-1p-b25 chint 25a b curve 1p 6ka miniture circuit breaker
Chint NXB-63-1P-B25 miniature circuit breaker, a 25 A B curve 1 pole 6 kA MCB for overload and short-circuit protection in residential, commercial and light industrial electrical installations.
£2.05
Why Choose the Chint NXB-63-1P-B25 Miniature Circuit Breaker?
The Chint NXB-63-1P-B25 is a reliable single pole miniature circuit breaker (MCB) designed to protect electrical circuits against overload and short-circuit faults. As part of the Chint NXB-63 MCB series, it provides dependable circuit protection for residential, commercial and light industrial low voltage electrical installations.
Featuring a 25 A rated current and a B curve thermal-magnetic trip characteristic, this MCB is suitable for circuits with relatively low inrush currents, including general power distribution, lighting, small equipment and selected socket outlet applications. Its compact modular format enables quick installation in compatible DIN rail consumer units and distribution boards.
With a 6 kA short-circuit breaking capacity, 230 V AC single-phase rating and compliance with IEC/EN 60898-1, the NXB-63-1P-B25 delivers practical and dependable protection while supporting safe isolation in modern electrical systems.
Key Advantages
- Reliable 25 A single pole miniature circuit breaker.
- B curve tripping characteristic for low inrush current circuits.
- 6 kA breaking capacity for dependable fault protection.
- Provides overload protection, short-circuit protection and positive isolation.
- Compact DIN rail mounting for straightforward installation.
- Suitable for domestic, commercial and light industrial circuit protection.
Key Features
- Chint NXB-63 miniature circuit breaker series.
- 1 pole configuration.
- 25 A rated current.
- B curve trip characteristic.
- 6 kA rated short-circuit breaking capacity.
- 230 V AC rated voltage.
- Thermal-magnetic release for overload and short-circuit protection.
- Compatible with standard 35 mm DIN rail distribution systems.
Reliable Protection for Low Voltage Circuits
Miniature circuit breakers such as the Chint NXB-63-1P-B25 automatically disconnect electrical circuits when overload or short-circuit faults occur. This helps protect cables, connected equipment and electrical installations from damage caused by excessive current.
The B curve characteristic makes this breaker suitable for circuits with relatively low starting currents. Its compact modular construction and DIN rail compatibility make it a practical option for electricians working on consumer units, distribution boards and electrical control panels.
Typical Applications
- Residential power and lighting distribution.
- Commercial electrical distribution boards.
- Consumer units and final circuit protection.
- Control panels and auxiliary circuits.
- General low voltage circuit protection.
- Domestic, commercial and light industrial installations.
Technical Specifications
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| Current | 25 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | Chint | |
| Series | NXB-63 | |
| Model | NXB-63-1P-B25 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 1 pole | |
| Rated current | 25 A | |
| Trip curve | B curve | |
| Rated voltage | 230 V AC | |
| Frequency | 50 / 60 Hz | |
| Rated short-circuit breaking capacity | 6 kA | |
| Rated impulse withstand voltage | 4 kV | |
| Mechanical life | 20,000 operations | |
| Electrical life | 10,000 operations | |
| Standard | IEC / EN 60898-1 | |
| Mounting type | 35 mm DIN rail | |
| Protection functions | Overload protection, short-circuit protection and isolation |
Frequently Asked Questions
What is the Chint NXB-63-1P-B25 used for?
The Chint NXB-63-1P-B25 is used to protect single-phase electrical circuits against overload and short-circuit faults in consumer units, distribution boards and electrical panels.
What current rating does this MCB have?
The NXB-63-1P-B25 has a rated current of 25 A.
What does B curve mean on this breaker?
A B curve MCB is designed for circuits with relatively low inrush currents, making it suitable for general-purpose circuits where high starting currents are not expected.
What is the breaking capacity of the NXB-63-1P-B25?
The breaker has a rated short-circuit breaking capacity of 6 kA.
How is this MCB installed?
The Chint NXB-63-1P-B25 is designed for installation on a standard 35 mm DIN rail inside compatible consumer units, distribution boards and electrical panels.
Trusted by Electrical Installers Worldwide
Chint NXB-63 miniature circuit breakers are trusted by electricians and contractors for dependable overload protection, short-circuit protection and safe circuit isolation across modern low voltage electrical installations.
