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Chint NB1-63DH4P10 MCB – 4P – D Curve – 10A – 10kA
Chint NB1-63DH4P10 4 pole D curve 10A miniature circuit breaker with 10kA breaking capacity for reliable overload and short circuit protection in commercial and industrial electrical installations.
£30.69
Why Choose the Chint NB1-63DH4P10 Miniature Circuit Breaker?
The Chint NB1-63DH4P10 is a high performance 4 pole miniature circuit breaker (MCB) designed to provide dependable overload and short circuit protection in commercial, industrial and OEM electrical installations. As part of the trusted Chint NB1-63H Series, this breaker features a 10 kA breaking capacity, making it ideal for applications where higher prospective fault currents may be encountered.
With a 10 A rated current and a D curve tripping characteristic, the NB1-63DH4P10 is specifically suited to protecting circuits supplying equipment with high inrush currents, including transformers, motors, magnetic contactors and industrial control systems. Its four pole configuration provides simultaneous isolation of all conductors for enhanced safety during servicing and maintenance.
Designed for installation on a standard 35 mm DIN rail, the NB1-63DH4P10 combines compact dimensions, reliable performance and long operational life, making it an excellent choice for electrical contractors, panel builders and industrial maintenance engineers.
Key Advantages
- Compact 4 pole miniature circuit breaker.
- 10 A rated current for industrial power and control circuits.
- D curve tripping characteristic for high inrush current applications.
- 10 kA breaking capacity for dependable fault protection.
- Reliable overload and short circuit protection.
- Quick DIN rail mounting for straightforward installation.
- Suitable for commercial, industrial and OEM electrical systems.
Key Features
- Manufacturer: Chint
- Series: NB1-63H
- Model: NB1-63DH4P10
- 4 pole configuration.
- 10 A rated current.
- D curve trip characteristic (10 to 14 × In).
- 10 kA rated breaking capacity.
- Suitable for AC 50 / 60 Hz systems.
- Compact DIN rail mounted design.
- Compatible with selected NB1 accessories.
Reliable Protection for High Inrush Current Circuits
The Chint NB1-63DH4P10 automatically disconnects electrical circuits whenever overload or short circuit conditions occur, helping to protect wiring, electrical equipment and connected machinery while improving installation safety and reliability.
Its D curve characteristic makes it particularly suitable for circuits supplying motors, transformers, magnetic devices and industrial equipment with high starting currents. The four pole configuration enables complete isolation across three phase electrical systems whenever required.
Typical Applications
- Industrial control panels.
- Motor control circuits.
- Transformer protection.
- Three phase machinery.
- OEM equipment.
- Commercial electrical installations.
- Electrical distribution systems.
Technical Specifications
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| Current | 10 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCB | |
| Trip Curve | D curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | Chint | |
| Series | NB1-63H | |
| Model | NB1-63DH4P10 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 10 A | |
| Number of poles | 4 | |
| Trip characteristic | D Curve | |
| Rated breaking capacity | 10 kA | |
| Rated voltage | 400 V AC | |
| Frequency | 50 / 60 Hz | |
| Rated insulation voltage (Ui) | 500 V | |
| Rated impulse withstand voltage (Uimp) | 4 kV | |
| Protection rating | IP20 | |
| Mounting type | 35 mm DIN rail | |
| Mechanical life | Up to 20,000 operations | |
| Electrical life | Up to 4,000 operations | |
| Operating temperature | -5°C to +40°C |
Frequently Asked Questions
What is the Chint NB1-63DH4P10 used for?
It provides overload and short circuit protection for commercial, industrial and OEM electrical circuits while also providing safe circuit isolation.
What current rating does this breaker have?
The NB1-63DH4P10 has a 10 A rated current, making it suitable for industrial power and control applications.
What does the D curve trip characteristic mean?
D curve miniature circuit breakers typically trip between 10 and 14 times their rated current, making them suitable for circuits supplying motors, transformers and other equipment with high inrush current.
What is the breaking capacity of this MCB?
The NB1-63DH4P10 has a 10 kA breaking capacity, allowing it to safely interrupt high fault currents.
How is the breaker installed?
The breaker is designed for installation onto a standard 35 mm DIN rail within electrical distribution boards, switchgear and industrial control panels.
Trusted by Electrical Professionals Worldwide
Chint NB1 Series miniature circuit breakers are widely trusted by electrical contractors, panel builders and industrial engineers for dependable circuit protection, long service life and reliable performance in demanding electrical installations.
