Chint NA1-1000X-630M/3P

The Chint NA1-1000X-630M/3P is a low-voltage air circuit breaker (ACB) engineered to deliver reliable protection and power control in industrial and commercial electrical distribution systems. As part of CHINT’s NA1 series, this model is built to manage three-phase circuits with a rated current of 630 A, providing robust safety and performance for critical electrical infrastructure.
Designed for AC systems at 50 Hz / 60 Hz with service voltages up to 400 V or 690 V, the NA1-1000X-630M/3P is ideal for environments where dependable protection against electrical faults is essential. It effectively safeguards circuits and connected equipment from overload, short-circuit, under-voltage and earth-fault conditions, helping to minimise downtime and prevent costly damage to downstream devices.
Built to comply with IEC/EN 60947-2 standards, the NA1 series combines electrical robustness with adaptable installation options. The “1000X” frame offers a compact yet high-performance platform, and the manual (M) operation version ensures straightforward, reliable use in fixed mounting applications.
Key Features
Designed for low-voltage AC distribution systems at 50 Hz/60 Hz.
Rated current: 630 A for three-phase applications (3P).
Protects against overload, short-circuit, under-voltage, and earth faults.
Meets international safety standard IEC/EN 60947-2.
“1000X” frame size balances compact design with high performance.
Manual (M) operating mechanism for fixed installations.
Suitable for use in switchgear, power distribution boards, and electrical control panels.
This model is well suited for modern power systems in factories, commercial buildings, utility power distribution, and other electrical systems where high performance and dependable protection are critical.