CHINT NXB-125 3Phase 4P AC MCB Circuit Breaker

The CHINT NXB-125 3-Phase 4P AC Mini Circuit Breaker is engineered for maximum protection in three-phase electrical systems. With a 125A current rating and 400V capacity, it prevents overloads, short circuits, and electrical hazards in residential, commercial, and industrial setups.

This MCB offers a 10kA short-circuit breaking capacity (Icu) and 7.5kA service breaking capacity (Ics), ensuring robust fault protection and durability. Built with a 4kV impulse withstand voltage (Uimp), it effectively handles transient surges, providing enhanced reliability for sensitive electrical equipment.

Designed with a compact, durable build and easy DIN rail mounting, the CHINT NXB-125 guarantees quick installation and long-term safety. It meets international electrical standards, making it a trusted solution for protecting three-phase systems.

Key Features:

• Rated Current: 125A – Suitable for high-power three-phase systems
• Rated Voltage: 400V~ – Ensures compatibility with standard AC networks
• Frequency: 50/60Hz – Universal system support
• Short-Circuit Breaking Capacity (Icu): 10kA – High fault-clearing capability
• Service Breaking Capacity (Ics): 7.5kA – Reliable performance under repeated faults
• Impulse Withstand Voltage (Uimp): 4kV – Protection against surges and transients
• Poles: 4P (Four Poles) – Comprehensive protection for three-phase circuits
• Compact & Durable – Space-saving design for easy installation and reliable operation
• DIN Rail Mounting – Quick and secure installation on standard 35mm rails