Circuit breaker
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Rated voltage: 550 kV;
Rated frequency: 50 Hz/60Hz;
Rated current: 4000A/5000A;
Rated power frequency 1min withstand voltage: isolation fracture between: (740+315) kV; Relative, phase to phase: 740 kV;
Peak rated lightning impulse withstand voltage (1.2/50μs) :
Rated voltage：252kV
Rated current：4000A、5000A
Rated short circuit current：50kA、63kA
Rated short circuit breaking times：Greater than 22 times
Rated voltage：72.5kV
Rated current：3150A、4000A
Rated short circuit current：31.5kA、40kA
Rated voltage：40.5kV
Rated current：2000A、2500A、4000A
Rated short circuit current：31.5kA、40kA
Low and high temperature tests：-50℃ ～+55℃
Rated voltage：40.5kV
Rated current：2000A、2500A
Rated short circuit current：31.5kA
Rated voltage: 363/420kV;
Rated frequency: 50/60Hz;
Rated current: 4000/5000A;
Rated short-circuit breaking current: 50/63 kA;
Rated short-circuit closing current: 130/171kA;
Rated short-time withstand current and duration: 50kA /3s, 63kA/3s;
Rated peak withstand current: 130/171kA;
Mechanical life: M2
Rated voltage：12kV、24kV
Rated current：630A、1250A
Rated short-circuit breaking current：20kA、25kA、31.5kA
Rated short circuit breaking times up to：30 times
Mechanical life up to：10000 times
Rated voltage：12kV
Rated current：630A
Rated short-circuit breaking current：20kA、25kA
Rated short circuit breaking times up to：30 times
Rated voltage：40.5kV
Rated current：2500A、3150A
Rated short circuit current：31.5kA
Low and high temperature tests：-50℃ ～+55℃
Rated voltage：72.5kV
Rated current：2500A、3150A、4000A
Rated short circuit current：40kA
Line charging current opening and closing test：Level C2
Low and high temperature tests：-50℃ ～+55℃
Rated voltage：72.5kV
Rated current：4000A
Rated short circuit current：50kA
Capacitor bank breaking current：4000A
Rated voltage：126kV
Rated current：3150A、4000A
Rated short circuit current：40kA
Rated voltage：252kV
Rated current：4000A、5000A
Rated short circuit current：50kA、63kA
Rated short circuit breaking times：Greater than 22 times
Mechanical life up to：10000 times
Rated voltage：12kV
Rated frequency：50Hz
Rated current：630A
The LW16-12 primary and secondary fusion column circuit breaker set is engineered for reliable protection and efficient switching in high-voltage power systems. Widely used in industrial, utility, and power distribution networks, it ensures optimal performance, safety, and durability. Our company provides top-quality, custom solutions tailored to your specific needs, ensuring long-lasting reliability and minimal maintenance for all your power protection requirements.