Factory Direct ARM6DC-500A DC Circuit Breaker with ISO9001 & CCC Certification

The ARM6DC series molded case circuit breakers are specifically designed for photovoltaic power generation systems, providing reliable DC circuit protection for solar energy applications. These breakers feature advanced arc extinguishing technology and robust construction for long service life in demanding environments.

With rated currents from 250A to 500A and 4-pole configuration, the ARM6DC-500A model offers superior protection for DC1500V systems. The breaker incorporates patented technology including large opening distance and pressurized air blowing solution for effective arc extinguishing.

Key features include overload and short circuit protection functions, compact size with high breaking capacity, and excellent vibration resistance. The mechanism components are optimized for reliability with mechanical life of 10,000 operations and electrical life of 2,000 operations.

These circuit breakers are ideal for use in centralized inverter systems where PV strings output to DC combiner boxes before inversion to AC power. The DC1500V rating makes them suitable for modern high-voltage solar installations.