The WEW1-4000 air circuit breaker is a high-performance, withdrawable type air circuit breaker (ACB) designed for critical applications in industrial, commercial, and utility environments. Manufactured by a leading China Air Circuit Breaker factory, this ACB offers robust and reliable protection for electrical systems operating at both 400VAC and 690VAC, with a current rating of up to 4000A. Available in both 3-pole and 4-pole configurations, the WEW1-4000 ensures comprehensive electrical safety and operational efficiency.