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nxb-63-1p-b20 chint 20a b curve 1p 6ka miniture circuit breaker
Chint NXB-63-1P-B20 20A B curve 1 pole miniature circuit breaker with 6kA breaking capacity for overload and short-circuit protection in low voltage electrical installations.
£2.05
Why Choose the Chint NXB-63-1P-B20 Miniature Circuit Breaker?
The Chint NXB-63-1P-B20 is a dependable single pole miniature circuit breaker (MCB) designed to protect electrical circuits against overload and short-circuit faults. As part of the proven Chint NXB-63 MCB series, it provides reliable protection for residential, commercial and light industrial low voltage electrical installations.
Featuring a 20 A rated current and a B curve thermal-magnetic trip characteristic, this MCB is ideal for circuits with relatively low inrush currents, including lighting, socket outlets, heating controls and general power distribution circuits. Its compact modular design enables quick installation into compatible DIN rail consumer units and distribution boards.
With a 6 kA rated short-circuit breaking capacity, 230 V AC operating voltage and compliance with IEC/EN 60898-1, the NXB-63-1P-B20 provides dependable protection while helping maintain the safety and reliability of modern electrical systems.
Key Advantages
- Reliable 20 A single pole miniature circuit breaker.
- B curve tripping characteristic for low inrush current applications.
- 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 residential, commercial and light industrial electrical systems.
Key Features
- Chint NXB-63 miniature circuit breaker series.
- 1 pole configuration.
- 20 A rated current.
- B curve trip characteristic.
- 6 kA rated short-circuit breaking capacity.
- 230 V AC rated voltage.
- Thermal-magnetic release mechanism.
- Compatible with standard 35 mm DIN rail mounting systems.
Reliable Protection for Low Voltage Circuits
The Chint NXB-63-1P-B20 automatically disconnects electrical circuits when overload or short-circuit faults occur, helping protect cables, electrical equipment and connected loads from damage caused by excessive current.
Its B curve tripping characteristic makes it particularly suitable for circuits with relatively low starting currents, while its compact modular design makes installation quick and straightforward in consumer units, distribution boards and electrical control panels.
Typical Applications
- Residential lighting and socket outlet circuits.
- Commercial electrical distribution.
- Consumer units and distribution boards.
- Control panels and switchboards.
- General low voltage circuit protection.
- Domestic, commercial and light industrial installations.
Technical Specifications
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| Current | 20 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-B20 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 1 pole | |
| Rated current | 20 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-B20 used for?
The Chint NXB-63-1P-B20 protects 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?
This miniature circuit breaker has a rated current of 20 A.
What does the B curve trip characteristic mean?
A B curve MCB is intended for circuits with relatively low inrush currents, making it suitable for lighting, socket outlets and other general-purpose electrical circuits.
What is the breaking capacity of the NXB-63-1P-B20?
The NXB-63-1P-B20 has a rated short-circuit breaking capacity of 6 kA.
How is this MCB installed?
The breaker is designed for installation on a standard 35 mm DIN rail inside compatible consumer units and distribution boards.
Trusted by Electrical Professionals Worldwide
Chint NXB-63 miniature circuit breakers are trusted by electricians and contractors for dependable overload protection, reliable fault interruption and long service life across residential, commercial and industrial electrical installations.
