Why Choose the Chint NB1-63C4P63 Miniature Circuit Breaker?
The Chint NB1-63C4P63 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 C curve MCB features a 63 A rated current, making it suitable for three-phase and neutral circuits supplying distribution circuits, control panels, socket outlets, HVAC equipment, small motors and other inductive loads with moderate inrush currents. The C curve tripping characteristic provides dependable protection where temporary start-up currents are expected.
With a rated short-circuit breaking capacity of 6 kA and a standard 35 mm DIN rail mounting format, the NB1-63C4P63 is easy to install within distribution boards and electrical control panels. Its 4 pole design provides simultaneous isolation and protection across all three phases and neutral.
Key Advantages
- Compact 4 pole miniature circuit breaker.
- 63 A rated current for three-phase and neutral circuits.
- C curve trip characteristic for moderate 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.
- 63 A rated current.
- C 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 Mixed Load Circuits
Miniature circuit breakers such as the Chint NB1-63C4P63 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 C curve characteristic trips between five and ten times the rated current, making it suitable for mixed resistive and inductive loads, distribution circuits, control panels, HVAC equipment, small motors, transformers and equipment with moderate inrush currents.
Typical Applications
- Three-phase and neutral distribution boards.
- Industrial control panels.
- Distribution circuits.
- HVAC equipment.
- Small motors, transformers and relays.
- Electrical installations requiring 63 A four pole protection.
