| Brand | HK Electrical |
| Model NO. | JCZ1-7.2kV(12kV) High Voltage Vacuum Contactor |
| Rated voltage | 7.2kV |
| Rated normal current | 250A |
| Rated frequency | 50/60Hz |
| Series | JCZ1 |
This series of medium-voltage vacuum contactors uses high-quality vacuum interrupters, combined with a metal frame and insulating supports, providing excellent breaking performance. They are suitable for single-phase or two-phase power network systems below 6kV(7.2kV) and 10kV(12kV), allowing for long-distance switching and interruption, frequent starts, and control of resistive, inductive, and capacitive loads.
The JCZ1 series single-pole medium-voltage vacuum contactor is commonly used in power protection applications such as signal source arc suppression, harmonic neutral grounding, and load boxes. As a main switch, it features a compact size, fast making and breaking speeds, and strong interruption capacity.
Uses high-quality vacuum interrupters, combined with a metal frame and insulating supports.
Features excellent breaking performance.
Offers advantages such as compact size, fast making and breaking speeds, and strong interruption capacity.
| Tech. parameters | Model | 160/7.2(12) | 250/7.2(12) | 400/7.2(12) | 630/7.2(12) | 800/7.2(12) |
| Rated voltage of Main Loop | (kV) | 7.2(12) | 7.2(12) | 7.2(12) | 7.2(12) | 7.2(12) |
| Rated current of Main Loop | (A) | 160 | 250 | 400 | 630 | 800 |
| Main loop making capacity | (A/100times) | 1600 | 2500 | 4000 | 6300 | 8000 |
| Main loop switching capability | (A/25times) | 1280 | 2000 | 3200 | 5000 | 6000 |
| Ultimate breaking capacity | (A/3times) | 3200 | 4000 | 4500 | 6300 | 8000 |
| Mechanical life | (10,000 times) | 100 | 100 | 100 | 100 | 100 |
| Electrical endurance AC3 | (10,000 times) | 25 | 25 | 25 | 25 | 25 |
| Electrical endurance AC4 | (10,000 times) | 10 | 10 | 10 | 10 | 10 |
| Power frequency withstand voltage of main circuit (fracture) | (kV) | 32(42) | 32(42) | 32(42) | 32(42) | 32(42) |
| Power frequency withstand voltage of control circuit | (kV) | 2 | 2 | 2 | 2 | 2 |
| Rated operating frequency | (Times/h) | 300 | 300 | 300 | 300 | 300 |
| Clearance between open contacts | (mm) | 5(6)-0.5 | 5(6)-0.5 | 5(6)-0.5 | 5(6)-0.5 | 5(6)-0.5 |
| Overtravel | (mm) | 1.5-0.5 | 1.5-0.5 | 1.5-0.5 | 1.5-0.5 | 1.5-0.5 |
| Secondary control voltage | (V) | AC or DC:110/220/380 or customized | ||||
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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