Overview

HYUNDAI HiAN63 is a brand‑new 3‑pole air circuit breaker rated 6300A, 1000V, 50/60Hz, designed for main‑incoming heavy‑duty low‑voltage power distribution systems. Equipped with electronic LSIG trip unit, it delivers adjustable overload, short‑circuit and earth‑fault protection. Available in fixed or draw‑out construction, this ACB complies with IEC 60947‑2 standard, featuring high short‑circuit breaking capacity. Supplied in new condition and ready for fast shipment, it serves as a critical MRO replacement for main switchgear assemblies.

Series

HiAN63 belongs to Hyundai Electric HiAN series air circuit breaker family, covering rated current from 630A up to 6300A. This 6300A frame supports both 3‑pole and 4‑pole versions. Trip unit, pole count, rated current and voltage are key ordering parameters. Direct substitution requires full model matching; other frame sizes within HiAN series cannot replace HiAN63 without switchgear modification.

Application Fields

Mainly used as main incoming or tie‑breaker inside large‑capacity low‑voltage switchgear. Widely deployed in power plants, petrochemical complexes, heavy‑industry factories, marine power stations and large commercial building distribution rooms. It protects transformers, busbars and downstream loads against overload, short‑circuit and earth‑fault. ACB failure may cause total power loss of the whole distribution section.

Summary

HYUNDAI HiAN63 3‑pole 6300A air circuit breaker provides comprehensive protection for high‑current industrial power distribution networks. Exact model and specification matching is required for replacement. After installation, verify trip parameter settings and mechanical operation to guarantee safe and reliable power supply.Tags: HYUNDAI HiAN63, 6300A Air Circuit Breaker, 3‑Pole 1000V ACB, Hyundai low‑voltage switchgear spare parts, main incoming circuit breaker