Air Circuit Breaker
Air circuit breaker for AC 50Hz systems (≤690V, 630A–4000A), providing power distribution and system protection against overload, over/undervoltage, short-circuit, and single-phase earth faults. Features intelligent selective protection and open communication interfaces supporting “Four Tele” functions (telemetry, telesignaling, telecontrol, teleregulation) for automation systems. Compliant with GB/T 14048.2 and IEC 60947-2.