chint mcb nbh8-40-c06 6a nbh8-40 mcbs c curve

Why Choose the Chint NBH8-40-C06 Miniature Circuit Breaker?

The Chint NBH8-40-C06 is a compact and reliable 6 A miniature circuit breaker (MCB) designed to protect low voltage electrical circuits against overload and short-circuit faults. As part of the Chint NBH8-40 series, it delivers dependable circuit protection and safe isolation for residential, commercial and light industrial electrical installations.

Featuring a C curve tripping characteristic, this MCB is ideal for circuits with moderate inrush current, including small motors, lighting circuits, control equipment and inductive loads. Its compact 1P+N configuration combines live conductor protection with neutral switching in a single modular device, helping maximise available space within distribution boards and consumer units.

With a rated current of 6 A and a 230/240 V AC operating voltage, the NBH8-40-C06 provides reliable protection while allowing straightforward installation on standard 35 mm DIN rails. It complies with IEC/EN 60898-1 and is suitable for switching and isolation as well as circuit protection.

Key Advantages

• Compact 6 A miniature circuit breaker for low voltage circuit protection.
• C curve tripping characteristic for circuits with moderate inrush currents.
• 1P+N configuration providing live protection and neutral switching.
• Protects against overload and short-circuit faults.
• Suitable for 230/240 V AC electrical distribution systems.
• DIN rail mounting for quick installation in electrical panels and consumer units.

Key Features

• Chint NBH8-40 miniature circuit breaker series.
• 6 A rated current.
• C curve trip characteristic.
• 1P+N pole configuration.
• 230/240 V AC rated operational voltage.
• Provides overload and short-circuit protection.
• Suitable for switching and circuit isolation.
• Compact modular DIN rail mounted design.

Technical Specifications

• Manufacturer: Chint
• Series: NBH8-40
• Model: NBH8-40-C06
• Product type: Miniature circuit breaker
• Rated current: 6 A
• Trip curve: C curve
• Number of poles: 1P+N
• Rated operational voltage: 230/240 V AC
• Rated insulation voltage: 500 V
• Rated frequency: 50 / 60 Hz
• Rated breaking capacity: 4.5 kA or 6 kA depending on version
• Rated impulse withstand voltage: 4 kV
• Standard: IEC/EN 60898-1
• Energy limiting class: Class 3
• Protection degree: IP20
• Mechanical life: 20,000 operations
• Electrical life: 10,000 operations
• Mounting type: 35 mm DIN rail
• Terminal connection: Cable or pin-type busbar
• Operating temperature: -5°C to +40°C
• Dimensions (W × H × D): approx. 44 × 86 × 60.7 mm
• Weight: approx. 120 g

Reliable Protection for Low Voltage Circuits

Miniature circuit breakers such as the Chint NBH8-40-C06 automatically disconnect electrical circuits whenever overload or short-circuit conditions occur. This protects wiring, connected equipment and electrical installations from damage while improving operational safety and system reliability.

Its C curve characteristic is designed to tolerate moderate inrush currents, making it suitable for lighting installations, auxiliary equipment, control panels, small motors and other inductive loads where dependable circuit protection is essential.

Typical Applications

• Residential consumer units.
• Commercial distribution boards.
• Lighting circuits.
• Control panels and auxiliary circuits.
• Small motors and inductive loads.
• Electrical isolation and switching applications.

Trusted by Electrical Professionals Worldwide

Chint NBH8 miniature circuit breakers are trusted by electricians, panel builders and maintenance engineers for reliable circuit protection, compact installation and dependable long-term performance.