Why Choose the Chint NM8-800S-4P-800A Moulded Case Circuit Breaker?
The Chint NM8-800S-4P-800A is a heavy-duty 4 pole moulded case circuit breaker (MCCB) designed to provide dependable overload and short-circuit protection for high-capacity industrial and commercial power distribution systems. As part of the proven Chint NM8 Series, it combines robust construction with reliable switching and isolation performance for demanding low-voltage installations.
Featuring an adjustable thermal-magnetic trip unit, the NM8-800S allows engineers to tailor protection settings to suit the application. Its high current rating, strong breaking capacity and durable moulded case design make it ideal for main distribution boards, large switchgear assemblies and industrial electrical infrastructure.
With a rated current of 800 A, 4 pole configuration and a 50 kA breaking capacity, the NM8-800S-4P-800A is well suited to large three-phase systems requiring dependable circuit protection, neutral isolation and long service life.
Key Advantages
- Heavy-duty 4 pole moulded case circuit breaker.
- 800 A rated current for high-capacity power distribution.
- Adjustable thermal-magnetic protection for installation flexibility.
- 50 kA short-circuit breaking capacity for reliable fault interruption.
- Suitable for switching, isolation and circuit protection.
- Designed for dependable operation in demanding industrial environments.
Key Features
- Chint NM8 Series MCCB.
- 800 A rated current.
- 4 pole configuration.
- Adjustable thermal-magnetic trip unit.
- 50 kA rated breaking capacity.
- Rated operational voltage up to 690 V AC.
- Suitable for isolation in accordance with IEC requirements.
- Fixed mounting for industrial switchgear and distribution equipment.
Reliable Circuit Protection for High-Power Installations
The Chint NM8 Series is engineered to protect low-voltage electrical systems against overloads and short circuits while providing dependable switching and safe isolation. The adjustable thermal-magnetic release enables the breaker to be configured for the electrical characteristics of larger industrial installations.
The NM8-800S is suitable for manufacturing plants, infrastructure projects, utilities and large commercial buildings where high-current circuit protection and operational continuity are critical.
Typical Applications
- Main incoming distribution boards.
- Industrial switchgear assemblies.
- Large motor control centres.
- Commercial and industrial electrical installations.
- Manufacturing and processing facilities.
- Power distribution infrastructure.
