DZ47B-125 series high-breaking miniature circuit breaker has small appearance, light weight, excellent performance and reliability, highbreaking capacity, quick tripping, rall mounting, high flame retardant and impact resistant plastic for housing and components, and longservice life, Mainly used for Ac 50Hz/60Hz single-stage, 230v/400V, second, third and fourth pole 400v; rated current 63A to 125s line foioverload and short circuit protection, and can also be used to open and close electlical devices freguently under normal conditions. in thelighting circuit.