High Voltage AC Vacuum Contactor CKG3-12, 160A–630A
The CKG3 series AC vacuum contactor (160–630A) is designed for high-voltage AC networks up to 12kV, with a frequency of 50Hz. It is ideal for long-distance circuit connection and disconnection, as well as frequent starting and stopping of AC motors. This contactor works seamlessly with various protection devices and can be assembled into a flameproof electromagnetic starter.
Suitable for power distribution systems below 12kV, the CKG3 vacuum contactor can be equipped with a mechanical interlocking shaft between two units, enabling mechanical and electrical interlocking. It is widely used for forward/reverse motor control, power braking, and main line switching in electronic control circuits.
With frequent operation capability, long mechanical life, high reliability, low maintenance, and excellent switching performance, the CKG3 series is also perfect as the main switch for loads such as high-voltage fans, providing safe and stable operation.
Item | Data |
Rated working voltage (Ue) | 12 kV |
Rated working current (Ie) | 160A, 250A, 400A, 630A |
Power frequency withstand voltage | 42 kV |
Lightning impulse withstand voltage | 75 kV |
Rated breaking capacity | 8Ie, 25 times |
Rated closing capacity | 10Ie, 100 times |
Rated short-time withstand current | 1.6kA, 2.5kA, 4kA, 6.3kA (10Ie) |
Rated peak withstand current | 4kA, 6.3kA, 10kA, 16kA (25Ie) |
Short circuit current breaking and closing | 0–180s-C0–180s-C0, 1 time |
Overload withstand current | 2.4kA, 3.8kA, 6kA, 10kA |
Rated opening distance | 5.5 ± 0.5 mm |
Overtravel | 21.5 mm |
Closing synchronicity | ≤2 ms |
Mechanical life | 500,000 times |
Electrical life AC-3 | 250,000 times |
Electrical life AC-4 | 100,000 times |
Phone: +8613736779975
E-mail: sales@vcbbreaker.com
Address: 66 Punan Road, Yueqing Economic Development Zone, Zhejiang, China
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