High voltage indoor vacuum icrcuit breaker

compact structure
and small outlines
high breaking capacity
short arcing distance

Main Technical Data
Rated voltage	kv	40.5
Rated lighting impulse withstand voltage(peak)	kv	185
Rated short-time power frequency withstand voltage(1min)	kv	95
Rated short-circuit breaking current	kA	25	31.5
Rated current	A	1250/1600	1250/1600/2000
Rated peak withstanding current	kA	63	80
Rated operations of short-circuit breaking current interruption	times	20
Rated duration of short-circuit	s	4
Rated operating sequence		0-0.3-CO-180s -CO
Supply voltage of open and close installation	v	AC,DC220 AC,DC110
Closing time	ms	50~100
Opening time	ms	30~60
Rated single capacitor bank breaking current	A	630
Rated back to back capacitor bank breaking current	A	400
Mechanical life	times	(M1 degree)10000
Mechanical characteristics adjustment data
Rated contact stroke	mm	22±2
Contact overtravel	mm	8±2
Average opening speed	m/s	1.8±0.2
Average closing speed	m/s	0.65±0.2
Contact bouncing duration at closing operation	ms	≤3
Type of operatinf structure		Special 3AV sprinf operating structure
Three-pole simultaneity	ms	≤2
Condactive circuit resistance  of each phases	μΩ	≤45
Note:Rated characteristics can be given on requirment