CKG3-12kv 160A,250A,400A,630A AC Three Pole H.V Vacuum Contactor
Item No: CKG3-12kv
Application:
CKG3/-12 AC vacuum contactors (hereinafter referred to as: contactor) are applied in power network with AC frequency of 50Hz-60Hz, rated voltage of 12kV, and rated current below 630A in the main loop for the remote making and breaking, frequent start and control of AC motor. It is advisable to use them in combination with fuse and protective device to replace vacuum circuit breaker.
Normal working conditions:
1) Altitude above sea should not be over 1,000m; 2) Ambient temperature is -5~40°C; 3) Average temperature in 24 hour limited below 35°C; 4) When the highest temperature is 40°C, the relative humidity should not be higher than 50%; 5) Pollution degree: class 3
Specification:
Model
CKG3-7.2/160-630
Main circuit rated voltage(kv)
7.2
7.2
7.2
7.2
Main circuit rated current(A)
160
250
400
630
Main circuit making ability(A/10 Ops.)
1600
2500
4000
6300
Main circuit break-making ability(A/10 Ops.)
1280
2000
3200
5000
Maximum break ability(A/3 Ops.)
3200
3200
4000
6300
Mechanical lfe(Ops.)
1000000
1000000
1000000
1000000
Engineering lock life (Ops.)
100000
100000
100000
100000
Power frequency withstand voltage for main circuit(kv)
32
32
32
32
Power frequency withstand voltage for ouxillary circuit(kv)
2.5
2.5
2.5
2.5
Power frequency withstand voltage for control circuit(kv)
