| Brand | HK Electrical |
| Model NO. | CKG3 6kV 7.2kV 10kV 12kV High Voltage Vacuum Contactor |
| Rated voltage | 12kV |
| Rated normal current | 250A |
| Rated frequency | 50/60Hz |
| Series | CKG3 |
This series of high-voltage vacuum contactors, the AC vacuum contactors are suitable for power network system with AC 50-60HZ, 6kv(7.2kV), 10kV (12kV) main circuit rated voltage , and rated current from 160A to 1600A. This series of contactor is being applied in long-distance connection and breaking, as well as the frequent starting and controlling AC motors, transformers and capacitor banks and other occasions.
Good triphase synchronization, and stable mechanical characteristics.
Small closing bounce.
The resistance of the main circuit is ≤ 200 (μΩ) and the reliability is high.
Higher cost performace.
| Tech. parameters | Unit | 160、250/12(7.2) | 400/12(7.2) | 630/12(7.2) | 800/12(7.2) | 1250/12(7.2) |
| Main Circuit Rated voltage | (kV) | 12(7.2) | 12(7.2) | 12(7.2) | 12(7.2) | 12(7.2) |
| Main Circuit Rated current | (A) | 160、250 | 400 | 630 | 800 | 1000、1250 |
| Main circuit making capacity | (A/100times) | 2500 | 4000 | 6300 | 8000 | 10000 |
| Main circuit making and breaking capability | (A/25times) | 2000 | 3200 | 5000 | 6000 | 8000 |
| Ultimate breaking capacity | (A/3times) | 4000 | 4500 | 6300 | 8000 | 10000 |
| Mechanical life | (10,000 times) | 100 | 100 | 100 | 100 | 100 |
| Mechanical lock life | (10,000 times) | 10 | 10 | 10 | 10 | 10 |
| Electricity life AC3 | (10,000 times) | 25 | 25 | 25 | 25 | 25 |
| Permanent magnet mechanism life | (10,000 times) | 20 | 20 | 20 | 20 | 20 |
| Power frequency withstand voltage of main circuit (fracture) | (kV) | 42(32) | 42(32) | 42(32) | 42(32) | 42(32) |
| Phase-phase/phase-to-ground power frequency withstand voltage | (kV) | 42(32) | 42(32) | 42(32) | 42(32) | 42(32) |
| Lightning impulse withstand voltage level (LIWL) | (kV) | 75(60) | 75(60) | 75(60) | 75(60) | 75(60) |
| Rated operating frequency | (times/h) | 150 | 150 | 150 | 150 | 150 |
| The operating frequency of the permanent magnet mechanism | (times/h) | 30 | 30 | 30 | 30 | 30 |
| Terminal pressure | (N) | >100 | >100 | >100 | >100 | >100 |
| Clearance between open contacts | (mm) | 6(5)-0.5 | 6(5)-0.5 | 6(5)-0.5 | 6(5)-0.5 | 6(5)-0.5 |
| Overtravel | (mm) | 1.5-0.5 | 1.5-0.5 | 1.5-0.5 | 1.5-0.5 | 1.5-0.5 |
| Main circuit resistance | (μΩ) | ≤200 | ≤200 | ≤200 | ≤150 | ≤150 |
Rated at 6kV(7.2kV) and 10kV(12kV) up to 1600A (50/60Hz), this HV Vacuum Contactor frequently controls AC motors, transformers, and capacitor banks.
Featuring minimal closing bounce and excellent triphase synchronization, it significantly reduces contact wear, delivering stable mechanical performance.
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