Chint NB1-63CH4P04 MCB - 4P - C Curve - 4A - 10kA

Chint NB1-63CH4P04 MCB – 4P – C Curve – 4A – 10kA

Chint NB1-63CH4P04 4 pole C curve 4A miniature circuit breaker with 10kA breaking capacity for overload and short circuit protection in commercial and industrial electrical installations.

SKU: NB1-63CH4P04Alt SKU: NB163CH4P04MPN: NB1-63CH4P04
Price
List Price £59.20 ex VAT
Your Price (ex VAT)
£59.20
Manufacturer Lead Time Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

SUBTOTAL (EX VAT) £59.20
Trade pricing is personalised to your account

Manufacturer Lead Time

£59.20

Why Choose the Chint NB1-63CH4P04 Miniature Circuit Breaker?

The Chint NB1-63CH4P04 is a reliable 4 pole miniature circuit breaker (MCB) designed to provide dependable overload and short circuit protection in low voltage electrical distribution systems. As part of the high performance Chint NB1-63H Series, this device is suitable for commercial, industrial and control panel applications where compact DIN rail circuit protection is required.

With a 4 A rated current, C curve tripping characteristic and 10 kA breaking capacity, the NB1-63CH4P04 is suitable for protecting low current circuits that may experience moderate inrush currents. The 4 pole configuration allows simultaneous switching and isolation of multiple conductors, making it suitable for three phase electrical systems where full pole isolation is required.

Designed for straightforward installation in distribution boards and electrical enclosures, this Chint MCB provides reliable protection, compact dimensions and long service life. It is a practical choice for electrical contractors, panel builders, machine builders and maintenance engineers.

Key Advantages

  • Compact 4 pole miniature circuit breaker for low voltage protection.
  • 4 A rated current for low current circuits and control applications.
  • C curve trip characteristic suitable for mixed resistive and inductive loads.
  • 10 kA breaking capacity for dependable fault protection.
  • Provides protection against overload and short circuit conditions.
  • DIN rail mounting for quick installation in panels and distribution boards.
  • Suitable for commercial, industrial and OEM electrical systems.

Key Features

  • Chint NB1-63H Series miniature circuit breaker.
  • 4 A rated current.
  • 4 pole configuration.
  • C curve tripping characteristic.
  • 10 kA rated breaking capacity.
  • Provides overload and short circuit protection.
  • Suitable for AC 50 / 60 Hz systems.
  • Compact modular design for 35 mm DIN rail installation.

Reliable Protection for Electrical Distribution Systems

Miniature circuit breakers such as the Chint NB1-63CH4P04 help protect electrical installations by automatically disconnecting the circuit when overloads or short circuits occur. This helps reduce the risk of cable damage, equipment failure and unsafe fault conditions.

The C curve characteristic is designed for circuits with moderate inrush current, including control circuits, small inductive loads and general distribution applications. The 4 pole format provides simultaneous switching across all poles, supporting safe isolation and reliable protection in three phase electrical systems.

Typical Applications

  • Electrical distribution boards.
  • Industrial control panels.
  • Machine control circuits.
  • Commercial electrical installations.
  • Building services systems.
  • OEM machinery and automation panels.
  • Low current auxiliary and control circuits.

Technical Specifications

Current 4 A
Phase Three Phase
Manufacturer Chint
Series NB1-63H
Model NB1-63CH4P04
Product type Miniature Circuit Breaker (MCB)
Rated current 4 A
Number of poles 4 pole
Trip curve C Curve
Rated breaking capacity 10 kA
Rated voltage 400 V AC
Rated frequency 50 / 60 Hz
Rated insulation voltage 500 V
Rated impulse withstand voltage 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
Poles 4-pole
Device Type MCB
Trip Curve C curve
Breaking Capacity 10 kA

Frequently Asked Questions

What is the Chint NB1-63CH4P04 used for?

The Chint NB1-63CH4P04 is used to protect low voltage electrical circuits against overload and short circuit faults in distribution boards, control panels and industrial installations.

What current rating does this MCB have?

This miniature circuit breaker has a 4 A rated current, making it suitable for low current circuits and control applications.

What does C curve mean?

A C curve MCB typically trips between 5 and 10 times its rated current, making it suitable for circuits with moderate inrush current such as small inductive loads and general control circuits.

What is the breaking capacity of the NB1-63CH4P04?

The NB1-63CH4P04 has a 10 kA breaking capacity, providing dependable protection during short circuit fault conditions.

How is this circuit breaker installed?

The breaker is designed for installation on a standard 35 mm DIN rail inside electrical distribution boards, switchgear assemblies and control panels.

Trusted by Electrical Professionals Worldwide

Chint NB1 Series miniature circuit breakers are widely used by electrical contractors, panel builders and industrial engineers for reliable circuit protection, compact installation and dependable performance in modern electrical systems.

● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

 Priority sourcing and supply support

 Flexible payment terms for qualifying organisations

 Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 

Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

 

At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

What product ranges do you supply

We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What are your delivery times and costs?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What about warranties, returns and faulty items?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...