Chint NB1-63CH4P16 MCB - 4P - C Curve - 16A - 10kA

Chint NB1-63CH4P16 MCB – 4P – C Curve – 16A – 10kA

Chint NB1-63CH4P16 4 pole C curve 16A miniature circuit breaker with 10kA breaking capacity for reliable overload and short circuit protection in commercial and industrial electrical installations.

SKU: NB1-63CH4P16Alt SKU: NB163CH4P16MPN: NB1-63CH4P16
Price
List Price £59.20 ex VAT
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Manufacturer Lead Time

£59.20

Why Choose the Chint NB1-63CH4P16 Miniature Circuit Breaker?

The Chint NB1-63CH4P16 is a robust 4 pole miniature circuit breaker (MCB) engineered to provide dependable overload and short circuit protection in commercial, industrial and OEM electrical installations. As part of the proven Chint NB1-63H Series, this MCB offers a 10 kA breaking capacity, making it suitable for applications where higher prospective fault currents may be present.

Featuring a 16 A rated current and a C curve trip characteristic, the NB1-63CH4P16 is ideal for protecting circuits supplying socket outlets, lighting, small motors and other equipment with moderate inrush currents. The four pole configuration provides simultaneous isolation of all conductors, making it suitable for three phase electrical distribution systems.

Designed for installation on a standard DIN rail, the NB1-63CH4P16 combines reliable performance, compact dimensions and long mechanical life, making it an excellent choice for panel builders, electrical contractors and maintenance engineers.

Key Advantages

  • Compact 4 pole miniature circuit breaker.
  • 16 A rated current for commercial and industrial circuits.
  • C curve tripping characteristic for mixed resistive and inductive loads.
  • 10 kA breaking capacity for reliable fault protection.
  • Provides dependable overload and short circuit protection.
  • DIN rail mounting for quick installation.
  • Suitable for commercial, industrial and OEM applications.

Key Features

  • Manufacturer: Chint
  • Series: NB1-63H
  • Model: NB1-63CH4P16
  • 4 pole configuration.
  • 16 A rated current.
  • C curve trip characteristic (5 to 10 × 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 Electrical Installations

The Chint NB1-63CH4P16 automatically disconnects the electrical supply whenever overload or short circuit conditions occur, helping to protect wiring, connected equipment and electrical installations from damage while improving operational safety.

Its C curve characteristic makes it particularly suitable for circuits supplying socket outlets, control equipment, lighting circuits and small motors where moderate inrush currents are expected. The four pole configuration enables complete isolation across three phase installations when required.

Typical Applications

  • Commercial electrical distribution boards.
  • Industrial control panels.
  • Machine control systems.
  • OEM equipment.
  • Building services installations.
  • Three phase distribution systems.
  • General electrical switchboards.

Technical Specifications

Current 16 A
Phase Three Phase
Manufacturer Chint
Series NB1-63H
Model NB1-63CH4P16
Product type Miniature Circuit Breaker (MCB)
Rated current 16 A
Number of poles 4
Trip characteristic C 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
Poles 4-pole
Device Type MCB
Trip Curve C curve
Breaking Capacity 10 kA

Frequently Asked Questions

What is the Chint NB1-63CH4P16 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 NB1-63CH4P16 has a 16 A rated current, making it suitable for a wide range of power and distribution circuits.

What does the C curve trip characteristic mean?

C curve miniature circuit breakers typically trip between 5 and 10 times their rated current, making them suitable for circuits supplying mixed resistive and inductive loads with moderate inrush current.

What is the breaking capacity of this MCB?

The NB1-63CH4P16 has a 10 kA breaking capacity, enabling 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 specified by electrical contractors, panel builders and industrial engineers for dependable overload protection, long service life and reliable performance in modern electrical installations.

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