High voltage AC 2 Phase Vacuum Contactor CKG3-12 160A-630A
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CKG3-160-250-400-630 AC vacuum contactor is suitable for feed networks with AC 50HZ, rated voltage up to 12KV, and rated current 160 to 630A. It is used for connecting and breaking circuits over long distances, as well as frequently starting and stopping AC motors. It is suitable for use with various protection devices and assembled into a flameproof electromagnetic starter.
This series of vacuum contactors is suitable for power network systems below 12KV. After a mechanical interlocking shaft is installed between two vacuum contactors, mechanical interlocking and interlocking functions can be achieved, and electrical locking can also be achieved. It is mainly used for forward and reverse conversion, power braking, and line main switch in electronic control lines. It can be operated frequently and has the advantages of long mechanical life, high reliability, less maintenance, and excellent switching performance. It can also be used as the main switch in loads such as controlling the forward and reverse switching of high-voltage fans.Working conditions
1. Suitable for indoor and outdoor;
2. Ambient temperature -40°C~+40°C;
3. The altitude does not exceed 3000m (the porcelain sleeve type does not exceed 1000m);
4. The power frequency is not less than 48Hz and not more than 62Hz;
5. The power frequency voltage applied between the terminals of the 1140V low-voltage vacuum contactor for a long time shall not exceed the continuous operating power of the 1140V low-voltage vacuum contactor;
6. Areas with an earthquake intensity of 8 degrees or below;
7. The wind speed does not exceed 35m/s; -
Technical parameters
Item Data Rated working voltage (Ue) 12kV Rated working current (le) 160A, 250A, 400A, 630A Power frequency withstand voltage 42kV Lightning impulse withstand voltage 75kV Rated breaking capacity 8le 25 times Rated closing capacity 10le 100 times Rated short-time withstand current (10Ie) 1.6kA, 2.5kA, 4kA, 6.3kA Rated peak withstand current (25le) 4kA, 6.3kA, 10kA, 16kA Short circuit current breaking and closing (10Ie) 0-180s-CO-180s-CO 1time Overload withstand current (15le) 2.4kA, 3.8kA, 6kA, 10kA Rated opening distance 5.5±0.5mm overtravel ≥1.5mm Closing synchronicity ≤2ms Mechanical life 500000 times Electrical life AC-3 250000 times Electrical life AC-4 100000 times Shape and Installation Dimensions