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nxb-63-1p-b50 chint 50a b curve 1p 6ka miniture circuit breaker
Chint NXB-63-1P-B50 50A B curve 1 pole miniature circuit breaker with 6kA breaking capacity for overload and short-circuit protection in low voltage electrical installations.
£2.16
Why Choose the Chint NXB-63-1P-B50 Miniature Circuit Breaker?
The Chint NXB-63-1P-B50 is a dependable single pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short-circuit faults in low voltage electrical installations. As part of the proven Chint NXB-63 MCB series, it is suitable for residential, commercial and light industrial electrical distribution systems.
Featuring a 50 A rated current and a B curve thermal-magnetic trip characteristic, this MCB is designed for circuits with relatively low inrush currents, making it suitable for general power distribution, resistive loads and higher rated final circuits. Its compact modular design enables straightforward installation into compatible DIN rail consumer units, distribution boards and control panels.
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-B50 provides dependable protection while helping maintain the safety and reliability of modern electrical installations.
Key Advantages
- Reliable 50 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.
- 50 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
Miniature circuit breakers such as the Chint NXB-63-1P-B50 automatically disconnect electrical circuits when overload or short-circuit faults occur. This helps protect wiring, connected equipment and electrical installations from damage caused by excessive current while providing safe circuit isolation when required.
Its B curve characteristic makes this breaker suitable for circuits with relatively low starting currents. The compact modular construction allows fast installation in consumer units, distribution boards and electrical control panels, making it a practical choice for new installations, maintenance and upgrades.
Typical Applications
- Residential power distribution.
- Commercial electrical distribution boards.
- Consumer units and final circuit protection.
- General power and resistive load circuits.
- Control panels and switchboards.
- Domestic, commercial and light industrial installations.
Technical Specifications
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| Current | 50 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-B50 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 1 pole | |
| Rated current | 50 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-B50 used for?
The Chint NXB-63-1P-B50 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 50 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 general-purpose electrical circuits where high starting currents are not expected.
What is the breaking capacity of the NXB-63-1P-B50?
The NXB-63-1P-B50 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.
