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Chint NB1-63B4P02 MCB – 4P – B Curve – 2A – 6kA
Chint NB1-63B4P02 4 pole miniature circuit breaker with 2 A rated current, B curve tripping characteristic and 6 kA breaking capacity for overload and short-circuit protection.
£21.55
Why Choose the Chint NB1-63B4P02 Miniature Circuit Breaker?
The Chint NB1-63B4P02 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 NB1-63 series, it provides reliable circuit protection for residential, commercial and light industrial electrical installations.
This 4 pole B curve MCB features a 2 A rated current, making it suitable for low current three-phase and neutral circuits, control circuits, signalling systems, instrumentation circuits and cable protection applications. The B curve tripping characteristic is designed for resistive loads and circuits with low inrush current.
With a rated short-circuit breaking capacity of 6 kA and a standard 35 mm DIN rail mounting format, the NB1-63B4P02 is easy to install within distribution boards and electrical control panels. Its 4 pole design provides simultaneous isolation and protection across three phases and neutral.
Key Advantages
- Compact 4 pole miniature circuit breaker.
- 2 A rated current for low current three-phase and neutral circuits.
- B curve trip characteristic for resistive loads.
- 6 kA short-circuit breaking capacity.
- Reliable overload and short-circuit protection.
- DIN rail installation in distribution boards and control panels.
Key Features
- Chint NB1-63 series MCB.
- 2 A rated current.
- B curve tripping characteristic.
- 4 pole configuration.
- 6 kA breaking capacity.
- 400 V AC rated voltage.
- 35 mm DIN rail mounting.
- Suitable for overload, short-circuit protection and circuit isolation.
Reliable Protection for Three-Phase and Neutral Circuits
Miniature circuit breakers such as the Chint NB1-63B4P02 automatically disconnect electrical circuits when overloads or short circuits occur. This helps protect wiring, connected equipment and electrical installations from excessive current and fault conditions.
The B curve characteristic trips between three and five times the rated current, making it suitable for resistive loads, lighting circuits, signalling systems, instrumentation circuits and long cable runs with minimal inrush current.
Typical Applications
- Three-phase and neutral distribution boards.
- Industrial control panels.
- Control and signalling circuits.
- Instrumentation circuits.
- Cable protection.
- Electrical installations requiring 2 A four pole protection.
Technical Specifications
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| Current | 2 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | Chint | |
| Series | NB1-63 | |
| Model | NB1-63B4P02 | |
| Product type | Miniature circuit breaker / MCB | |
| Rated current | 2 A | |
| Number of poles | 4 pole | |
| Tripping characteristic | B curve | |
| Rated voltage | 400 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Rated short-circuit breaking capacity | 6 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 NB1-63B4P02 used for?
The Chint NB1-63B4P02 protects three-phase and neutral electrical circuits against overloads and short circuits, particularly low current control, signalling and instrumentation circuits.
What current rating does this MCB have?
This miniature circuit breaker has a rated current of 2 A.
What does the B curve characteristic mean?
A B curve MCB trips between 3 and 5 times its rated current, making it ideal for resistive loads and circuits with low inrush currents.
What is the breaking capacity of this MCB?
The NB1-63B4P02 has a rated short-circuit breaking capacity of 6 kA.
How is the NB1-63B4P02 installed?
The device mounts onto a standard 35 mm DIN rail inside distribution boards and electrical control 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.
