Compact circuit breaker CHINT NXM‑125S/4300B 63 A

It is a 4‑pole compact molded-case circuit breaker (MCCB) designed for reliable low-voltage power distribution and protection. It effectively protects against overloads, short circuits, and under voltage faults, ensuring the safety of electrical circuits in industrial, commercial, or residential systems .
Rated at 63 A, the breaker supports a wide operating voltage range from 220 V up to 690 V AC, making it versatile across diverse electrical infrastructures. It incorporates a thermal‑magnetic fixed trip unit, which provides fast and dependable disconnection under fault conditions.
This model is compact yet robust, available with 2‑pole, 3‑pole or 4‑pole configurations, and can be installed either fixed or plug‑in, offering flexibility for different mounting requirements. With a breaking capacity class (e.g., 4300B), it typically handles fault currents up to 20–25 kA, compliant with IEC/EN 60947‑2 standards.