MCB 4P C-Curve, 6kA

CHINT NXB-63G-4P – 4-Pole Miniature Circuit Breaker

The CHINT NXB-63G-4P is a reliable 4-pole miniature circuit breaker designed for dependable protection of three-phase electrical systems. It provides overload and short-circuit protection while offering complete isolation of all poles, making it suitable for residential, commercial and industrial applications where safe multi-pole disconnection is required.

Key Features

• 4-pole protection for balanced three-phase circuits.
• Thermal-magnetic trip technology for accurate fault response.
• Compact DIN-rail mounting for easy integration into distribution boards.
• Clear ON/OFF indication and smooth toggle operation.
• Durable, high-strength housing designed for long-term reliability.
• Suitable for both new installations and DB upgrades.

Typical Applications

• Three-phase distribution boards in commercial buildings.
• Small industrial machinery and workshop installations.
• PV inverter AC output distribution panels.
• Motor loads, pumps, HVAC and general three-phase circuits.
• Backup power systems and generator changeover boards.

Installation Notes

• Mount on a standard 35 mm DIN rail inside a compliant enclosure.
• Ensure correct three-phase orientation (L1, L2, L3, N where applicable).
• Use properly rated conductors and follow torque specifications.
• Coordinate with upstream and downstream protective devices for optimal selectivity.

The NXB-63G-4P offers safe, dependable three-phase protection in a compact form factor, making it a trusted choice for professional installers and system integrators.

Specifications on product page. SANS/IEC compliant. Choose your option.