chint mcb nb1-63b1p02 2a, 1p6ka sp b curve

Why Choose the Chint NB1-63B1P02 Miniature Circuit Breaker?

The Chint NB1-63B1P02 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 installations.

This 1 pole B curve MCB features a 2 A rated current, making it suitable for low current circuits such as control circuits, auxiliary supplies, lighting control and sensitive electrical equipment. The B curve tripping characteristic provides fast response on circuits with low inrush currents.

With a rated short-circuit breaking capacity of 6 kA and a standard 35 mm DIN rail mounting format, the NB1-63B1P02 is easy to install in consumer units, distribution boards and electrical control panels. Its compact modular design supports neat, reliable and serviceable electrical assemblies.

Key Advantages

• Compact 1 pole miniature circuit breaker.
• 2 A rated current for low current electrical circuits.
• B curve trip characteristic for circuits with low inrush current.
• 6 kA short-circuit breaking capacity.
• Reliable overload and short-circuit protection.
• DIN rail mounting for quick installation in distribution boards.

Key Features

• Chint NB1-63 series MCB.
• 2 A rated current.
• B curve tripping characteristic.
• 1 pole configuration.
• 6 kA rated breaking capacity.
• 230 V AC rated voltage.
• DIN rail mounting.
• Suitable for overload and short-circuit protection.

Technical Specifications

• Manufacturer: Chint
• Series: NB1-63
• Model: NB1-63B1P02
• Product type: Miniature circuit breaker / MCB
• Rated current: 2 A
• Number of poles: 1 pole
• Tripping characteristic: B curve
• Rated voltage: 230 V AC
• Rated frequency: 50 / 60 Hz
• Rated short-circuit breaking capacity: 6 kA
• Rated insulation voltage: 500 V
• Rated impulse withstand voltage: 4 kV
• Protection rating: IP20
• Mounting type: 35 mm DIN rail
• Standards: IEC / EN 60898-1

Reliable Protection for Low Current Circuits

Miniature circuit breakers such as the Chint NB1-63B1P02 automatically disconnect electrical circuits when overloads or short circuits occur. This helps protect cables, connected equipment and electrical installations from damage caused by excessive current.

The B curve characteristic makes this MCB suitable for circuits with low inrush currents, including lighting control, auxiliary control circuits and other low current electrical loads. Its modular DIN rail design allows straightforward integration into new or existing distribution systems.

Typical Applications

• Residential consumer units.
• Commercial distribution boards.
• Lighting and lighting control circuits.
• Control panels and auxiliary supplies.
• Low current electrical circuits.
• General electrical installations requiring 2 A protection.

Trusted by Electrical Professionals Worldwide

Chint miniature circuit breakers are trusted by electricians, panel builders and maintenance engineers for dependable circuit protection across residential, commercial and industrial electrical installations.