Vacuum Interrupter (ZKBF-12/630-20TYPE)
ZKBF type vacuum switch pipe adopts high oxidize glass make insulation shell and pipe make medium with high vacuum, so, its volume little, endure high voltage and minute break ability the strong length of service life , Chu head need not repair , especially because of its electric arc not outside dew, safe reliable advantage, is coal, power, chemical engineering, metallurgy, weaving and high-rise building etc.
profession place extensive adopting. this product match with suitable hold motivation Gou, may assemble close the business flow out the vacuum load switch of high voltage , as electrical facility protect and control . join load current, the current of closed circuit, idle transformer and cable charging current used in minute.

Technical parameter
Specified voltage 12KV
The specified withstand current of peak value 50KA
Specified Chu the contact resistance under first pressure ≤30μΩ
Specified current 630A
Specified is short endure by time 4S
Chu the first thickness of permissible wear 3mm
Specified meritorious load switched current 630A
The specified barrier of short circuit joins current 50KA
The 20 years of storage life
The specified switched current of closed circuit 630A
Is specified Work frequency withstand voltage 42KV
Match to use load switch FZN21-12D/T630-20type
Specified cable charges switched current 10A
Chu head from close force 190+_20N
Specified break open idle transformer capacity 1250KVA
Specified open rules take off Chu head turn over force 240+_24N