Automatic Recloser 3 Phase Outdoor Pole Mounted Zw32-12 Vacuum Circuit Breaker

ZW32-12 outdoor AC vacuum circuit breaker is used to make and break load current, overload current and short circuit protection in 12kV, 50Hz/60Hz power system.
It is applicable for substations, industry and mining, urban and rural electricity power networks, especially applicable in occasions with frequent operation
and automatic power distribution network. It accords with the standard of IEC62271-100 & GB1984 AC high voltage circuit breaker, GB/T11022 HV general technical
requirement of switch and control apparatus.

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Technical Parameter

Item	Unit	Data
Rated voltage	kV	12
Rated frequency	Hz	50
Rated current	A	630
Rated short circuit breaking current	kA	12.5/16/20
Rated withstand current (peak)	kA	31.5/40/50
Rated short-duration withstand current (4s)	kA	12.5/16/20
Rated short circuit making current (peak)	kA	31.5/40/50
Mechanical life	Times	Spring Operation 10000/Permanent Magnetic 30000
Rated operating sequence		O-0.3s-CO-180s-CO
Breaking number for rated short-circuit current	Times	30
Power frequency withstand voltage (1min)	kV	Dry test-42/48(to ground, inter-pole/fracture) Wet test-34
Lightning impulse withstand voltage (peak)	kV	75/85 ( inter-pole/fracture)
Closing time	ms	25~60
Total breaking time	ms	≤100
Arcing time	ms	≤20
Rated input power of energy storage motor	W	40
Rated operating voltage and auxiliary circuit rated voltage	V	DC220/110/24 AC220/110
Energy storage time under rated voltage	s	≤10
Rated current of over-current tripper	A	5

Item	Closing coil	Opening coil	Over-current tripping coil
Rated voltage (V)	220	220
Rated working current(A)	AC:5 DC:3.2	AC:5 DC:0.8	5
Voltage and current rang under normal working	Action on 65%-110% of rated voltage	Action on 65%-110% of rated voltage avoid tripping under less than 30% of rated voltage	Action on 65%-110% of rated voltage avoid tripping under less than 90% of rated voltage