ZKTJ-125/1140(II) TYPE)
ZKTJ type,ZKTDtype porcelain vacuum switch pipe make insulation shell and pipe with high alumina porcelain make medium with high vacuum, thus its volume is little , endure high voltage and minute to break, ability is strong the 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 and metallurgical, petroleum etc. industrial department place extensive adopting.

Technical parameter
specified working voltage 1140V
Specified working current 125A
Specified put through ability 1.25KA 100 Frequency
Specified minute break ability 1KA.25 Frequency
Limit divides into broken ability 2.5KA,3 Frequency
Specified is short withstand current 1KA
The specified duration of short circuit 10S
Work frequency withstand voltage 10KV
Electrical life AC4.6 ten thousands
Mechanical life 100 Ten thousands
Chu head specified is away from open 1.8+-0.2mm
Chu head from close force 20+-3N
Chu head specified is away from open turn over force 45+-5N
Chu head from close force take off contact resistance ≤120μΩ
Chu the first thickness of permissible wear 1mm
The biggest quality of switch pipe 0.3KG
Match to use contactor CKJ5-125(ii)type