CKG3-12kV 160A 250A 400A 630A AC Three Pole H.V. Vacuum Contactor

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 electrical vacuum circuit breaker.

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CKG3-12kV 160A 250A 400A 630A AC Three Pole H.V. Vacuum Contactor

Electrical Products

Usage Conditions
Technical Parameters
Dimensions

Normal working conditions of CKG3/-12 AC HV Three-Pole Vacuum Contactors

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

Technical Parameters of CKG3/-12 AC HV Three-Pole Vacuum Contactors

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)	2	2	2	2
Rated operating frequency)Ops./h)	300	300	300	300
Engineering lock operate frequency(Ops./h)	30	30	30	30
Clearance between open contact(mm)	4±0.5	4±0.5	4±0.5	4±0.5
Over travel(mm)	≥1.2	≥1.2	≥1.2	≥1.2