Product Details

ZW8-12 model outdoor AC vacuum circuit breaker is used
to make and break load current, overload current and
short-circuit cu rrent in12kV, 50/60Hz power system.
Its applicable for substations, industry and mining,
urban and rural electricity power networks, especially
applicable in oc casio ns wi th fr equent operation and
automatic power distribution network. It accords with the
standards of IEC62271-100 & GB1984 AC high voltage
circuit breaker, GB/T 11022 HV General technical
requirement of switch and control apparatus.
Structure feature
1. Vacuum arc extinguish.
2. Silicon rubber and plastic composite insulation.
3. It can be matched with controller as auto-recloser
and auto-sectionalizer.

11KV 630A Outdoor Vacuum Circuit Breaker ZW8

Technical specification

No.	Item	Unit	Data
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16	Rated voltage 1min P.F withstand voltage-dry 1min P.F withstand voltage-wet(phase to earth, outer insulate) Lightning impulse withstand voltage(peak) Rated current Rated power frequency Rated short-circuit breaking current Rated operating sequence Rated short-circuit breaking time Rated short-circuit making current(peak) Rated withstand current(peak) Rated short-time withstand current(4s) Rated short-circuit duration Mechanical life Rated operating voltage and rated voltage of auxiliary loop Rated current of over-current tripper	kV kV kV kV A Hz kA Times kA kA kA s Times V A	12 42 34 75 630 50/60 12.5,16,20 O-0.3s-CO-180s-CO 30 31.5,40,50 31.5,40,50 12.5,16,20 4 10000 220 5

Note: the insulating level should rectify accordingly when the altitude higher than 1000 m.