Why Choose the Chint NM8S-630S-4P-630A Electronic MCCB?
The Chint NM8S-630S-4P-630A is a high-performance electronic moulded case circuit breaker (MCCB) engineered to provide dependable overload and short-circuit protection for low voltage electrical distribution systems. Designed for demanding industrial and commercial applications, it combines accurate electronic protection with robust construction for long-term reliability.
As part of the proven Chint NM8S Series, this MCCB incorporates an adjustable electronic trip unit, allowing protection settings to be tailored for improved selectivity and coordination across complex electrical installations. It is ideal for main incomers, distribution boards, feeder circuits and large power distribution systems.
With a 630A rated current, 4-pole configuration and 50kA breaking capacity, the NM8S-630S-4P-630A is perfectly suited to three-phase electrical systems requiring neutral switching. It delivers reliable protection for manufacturing plants, commercial buildings, infrastructure projects and critical power distribution applications.
Key Advantages
- 630A rated current for demanding power distribution applications.
- 4-pole configuration for three-phase systems with neutral switching.
- Adjustable electronic trip unit for accurate protection coordination.
- 50kA breaking capacity for dependable fault interruption.
- Supports improved selectivity across low voltage distribution networks.
- Designed for industrial, commercial and infrastructure electrical installations.
Key Features
- Chint NM8S Series electronic moulded case circuit breaker.
- 630A rated current.
- 4-pole design.
- Adjustable electronic protection.
- 50kA rated breaking capacity.
- Rated operational voltage up to 690V AC.
- Fixed mounting for switchboards and distribution panels.
- Manufactured in accordance with IEC/EN 60947-2.
Reliable Protection for Three-Phase Distribution Systems
The Chint NM8S-630S-4P-630A safeguards electrical systems by disconnecting circuits during overload and short-circuit fault conditions. Its electronic protection system enables engineers to optimise long-time and instantaneous protection settings, helping improve reliability and minimise unnecessary downtime.
The 4-pole design allows all three phases and the neutral conductor to be switched simultaneously, making it suitable for installations where complete circuit isolation and enhanced system protection are required.
Typical Applications
- Industrial switchboards.
- Main and sub-distribution boards.
- Commercial electrical installations.
- Manufacturing and processing facilities.
- Infrastructure and utilities.
- High-capacity feeder circuit protection.
