Why Choose the Chint NB1-63D2P04 Miniature Circuit Breaker?
The Chint NB1-63D2P04 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 2 pole D curve MCB features a 4 A rated current, making it suitable for specialised control circuits, transformers, solenoids, magnetic devices and equipment with high inrush currents. The D curve tripping characteristic is designed for highly inductive loads that can generate substantial start-up currents.
With a rated short-circuit breaking capacity of 6 kA and a standard 35 mm DIN rail mounting format, the NB1-63D2P04 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.
Key Advantages
- Compact 2 pole miniature circuit breaker.
- 4 A rated current for specialised low current circuits.
- D curve trip characteristic for high inrush current 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.
- 4 A rated current.
- D curve tripping characteristic.
- 2 pole configuration.
- 6 kA breaking capacity.
- 230 / 400 V AC rated voltage.
- DIN rail mounting.
- Suitable for overload, short-circuit protection and circuit isolation.
Reliable Protection for High Inrush Current Circuits
Miniature circuit breakers such as the Chint NB1-63D2P04 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 D curve characteristic makes this MCB suitable for circuits with high inrush currents, including transformers, magnetic devices, solenoids, discharge lighting and other inductive loads. Its 2 pole construction provides simultaneous switching and protection across both conductors.
Typical Applications
- Industrial control panels.
- Transformer protection.
- Magnetic device circuits.
- Control and auxiliary circuits.
- High inrush current equipment.
- Electrical installations requiring 4 A protection.
