Pole Mounted Vacuum Circuit Breaker 10-15kV,Outdoor Switch-Pole Mounted Vacuum Circuit Breaker 10-15kV-Wenzhou Tuyuan Electric Co.,Ltd

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.

No.	Item	Units	Data
1	Rated voltage	kV	12
2	Rated current	A	630/1250
3	Rated frequency	Hz	50/60
4	1 min PF withstand voltag	kV	42
5	Lightning impulse withstand voltage	kV	75
6	Rated short circuit breaking current	kA	20/25
7	Rated short circuit making current (peak)	kA	40/50
8	Rated peak withstand current	kA	40/50
9	4s short-circuit withstand current	kA	20/25
10	Rated operating sequence		O-0.3S-CO-180S-CO
11	Number of rated short-circuit breaking current operations	times	30
12	Mechanical life	times	10000
13	Mechanism control voltage	V	AC/DC 220
14	Power-frequency withstand voltage for 1 min (secondary circuit)	kV	2

No.	Item	Units	Data
1	Contact gap	mm	2±0.5
2	Contact overtravel	mm	9±01
3	Opening speed	m/s	1.2±0.2
4	Closing speed	m/s	0.6±0.2
5	Contact closing bounce time	ms	≤2
7	Three-phase opening and closing asynchronism	ms	≤2
8	Resistance of each phase conducting circuit	μΩ	＜80

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