CKG3-7.2 Vacuum Contactor 3 polesis suitable for an AC 50-60 Hz electric power system, with highest operating voltage of 7.2 kV, for direct or remote on-off control of the main circuit. Especially suitable for controlling of frequently operated of the motor, or other loads. It features of reliability, long lifetime, less maintenance, and safety. It has proven the very obvious economic benefit with this kind of product to replace the conventional products.
This series of vacuum contactors main used below the rated current from 160A-1600A power network systems for remote making and breaking and frequent starting and control of AC motors, transformers and capacitor banks and other occasions.
Main Technical Parameters
|
Model / Tech. parameters |
160/7.2KV |
250/7.2KV |
400/7.2KV |
630/7.2KV |
800/7.2KV |
|
Main circuit rated voltage (KV) |
7.2 |
7.2 |
7.2 |
7.2 |
7.2 |
|
Main circuit rated current (A) |
160 |
250 |
400 |
630 |
800 |
|
Main circuit making capacity |
1600 |
2500 |
4000 |
6300 |
8000 |
|
Main circuit break-make |
1280 |
2000 |
3200 |
5000 |
6000 |
|
Maximum break ability (A/3times) |
3200 |
4000 |
4500 |
6300 |
8000 |
|
Mechanical life (times) |
100 0000 |
100 0000 |
100 0000 |
100 0000 |
100 0000 |
|
Electricity life AC3 (times) |
25 0000 |
25 0000 |
25 0000 |
25 0000 |
25 0000 |
|
Engineering lock life (times) |
10 0000 |
10 0000 |
10 0000 |
10 0000 |
10 0000 |
|
Power-frequency withstand voltage |
28 |
28 |
28 |
28 |
28 |
|
Phase-phase phase - to current withstand voltage(KV) |
32 |
32 |
32 |
32 |
32 |
|
Lightning impulse withstand voltage (KV) |
60 |
60 |
60 |
60 |
60 |
|
Rated operate frequency (times/h) |
300 |
300 |
300 |
300 |
300 |
|
Engineering lock operate frequency (times/h) |
30 |
30 |
30 |
30 |
30 |
|
Terminal pressure(N) |
>200 |
>200 |
>200 |
>200 |
>200 |
|
Clearance between open contacts (mm) |
4±0.5 |
4±0.5 |
4±0.5 |
4±0.5 |
4±0.5 |
|
Over travel (mm) |
1.8±0.5 |
1.8±0.5 |
1.8±0.5 |
1.8±0.5 |
1.8±0.5 |
|
Main circuit electric resistance( μΩ) |
≤200 |
≤200 |
≤200 |
≤200 |
≤200 |
|
Secondary control voltage (v) |
AC or DC: 110, 220, 380 or can be customized |
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Please state the following when placing the order:
- Title, model/specification of the product;
- Rated voltage, rated current and rated control voltage;
- Quantity of product and spare parts;
- Other special requirements.
You can asking Data Sheet List before order by e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. or This email address is being protected from spambots. You need JavaScript enabled to view it.
