chint mcb nb1-63b1p01 1a, 1p 6ka sp b curve

Why Choose the Chint NB1-63B1P01 Miniature Circuit Breaker?

The Chint NB1-63B1P01 is a high-quality miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection for low voltage electrical installations. As part of the proven Chint NB1-63 series, it delivers reliable circuit protection for residential, commercial and light industrial applications.

This 1 pole B curve MCB features a 1 A rated current and a 6 kA breaking capacity, making it ideal for protecting low current lighting circuits, control circuits and sensitive electrical equipment. The B curve trip characteristic provides fast protection for circuits with low inrush currents.

Designed for installation on a standard 35 mm DIN rail, the NB1-63B1P01 offers quick installation, dependable performance and a compact modular design suitable for modern distribution boards and consumer units.

Key Advantages

• Compact 1 pole miniature circuit breaker.
• 1 A current rating for low current circuits.
• B curve trip characteristic for resistive loads.
• 6 kA short-circuit breaking capacity.
• Reliable overload and short-circuit protection.
• Simple DIN rail installation for distribution boards.

Key Features

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

Technical Specifications

• Manufacturer: Chint
• Series: NB1-63
• Model: NB1-63B1P01
• Product type: Miniature circuit breaker (MCB)
• Rated current: 1 A
• Number of poles: 1 Pole
• Tripping characteristic: B Curve
• Rated voltage: 230 V AC
• Frequency: 50 / 60 Hz
• Rated 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 Voltage Circuits

The Chint NB1-63B1P01 automatically disconnects electrical circuits when overloads or short circuits occur, helping prevent cable damage and reducing the risk of electrical faults. Its B curve characteristic is particularly suited to lighting circuits and other resistive loads with low starting currents.

Its compact modular design allows easy installation within consumer units, distribution boards and electrical control panels, making it suitable for both new installations and maintenance projects.

Typical Applications

• Residential consumer units.
• Commercial distribution boards.
• Lighting circuits.
• Control panels.
• Low current electrical circuits.
• General electrical installations.

Trusted by Electrical Professionals Worldwide

Chint NB1 miniature circuit breakers are trusted by electricians, panel builders and maintenance engineers for dependable circuit protection across residential, commercial and industrial electrical installations.