CKJ3 vacuum contactor is mainly used in the power system with AC 50Hz and rated voltage 12kV, for making or breaking circuit and to make electromagnetic starter with suitable protective device and F-C switchgear.
Working Conditions
Altitude above sea should not be over 1,000m;
Ambient temperature is -5~40°C;
Average temperature in 24 hour limited below 35°C;
When the highest temperature is 40°C, the relative humidity should not be higher than 50%;
Pollution degree: class 3
Technical Specification
Model
Rated voltage(v)
Rated current(Main circuit)(A)
Parameter of main contacts
Power frequencyWithstand voltage
V(effective value)
Maincircuit
Controlcircuit
Clearance(mm)
Over travel(mm)
pressure(N)
Maincircuit
Auxiliarycircuit
Controlcircuit
CKJ3-12/160
12000
220/110/380
160
5±0.5
2±0.2
>85N
42000
2500
2000
CKJ3-12/250
12000
220/110/380
250
5±0.5
2±0.2
>85N
42000
2500
2000
CKJ3-12/400
12000
220/110/380
400
5±0.5
2±0.2
>85N
42000
2500
2000
CKJ3-12/630
12000
220/110/380
630
5±0.5
2±0.2
>85N
42000
2500
2000
Model
Making capacity
Breaking capacity
Limit opening current(A)
Overload
Mechanism life
Weight(kg)
CKJ3-12/160
10Ie,100times
8Ie,25times
10Ie
8Ie,10s
1million times
30
CKJ3-12/250
10Ie,100times
8Ie,25times
10Ie
8Ie,10s
1million times
30
CKJ3-12/400
10Ie,100times
8Ie,25times
10Ie
8Ie,10s
1million times
30
CKJ3-12/630
10Ie,100times
8Ie,25times
10Ie
8Ie,10s
1million times
30
Note: “Ie” represents the rated current of main circuit