7.2kV 12kV Hot Sales High Quality 3 phase AC electromagnetic electric vacuum contactor
Inquire NowDescription
The 7.2kV 12kV High Quality 3 Phase AC Electromagnetic Electric Vacuum Contactor is engineered for robust performance in high voltage electrical systems. This innovative contactor is tailored for three-phase AC applications at 50Hz, with a rated voltage capability of 7.2kV and 12kV, and a rated current capacity of up to 630A. It is designed for long-distance circuit making and breaking control of high voltage motors, transformers, and capacitive loads, making it particularly suitable for frequent operation in demanding environments. The compact and lightweight design, featuring an assembled structure, adopts an internationally popular layout, ensuring ease of use and maintenance.
This contactor supports two forms of operation: mechanical closing and electromagnetic keeping, allowing for versatile application in various electrical setups.
Specifications
| Specification | Unit | Details |
|---|---|---|
| Rated Voltage | kV | 12 |
| Rated Current | A | 630, 400, 250 |
| Rated Closed Current (Valid Values) | A | 6300, 4000, 2500 |
| Rated Max Breaking Current | A | 5040, 3200, 2000 |
| 4s Thermal Stability of the Current | A | 6300, 4000, 2500 |
| Max Breaking Current | A | 6300, 4000, 2500 |
| Power Frequency Withstand Voltage | kV | 42 |
| Allows the Operating Frequency | Time/h | 300 |
| Electrical Life (AC-3) | ×104 times | 25 |
| Electrical Life (AC-4) | ×104 times | 10 |
| Rated Operation Voltage | V | AC110/220 |
| Closing Coil Absorption Current | A | ≤DC6/3 |
| Keep Coil Keeping Current | A | D:DC 0.32/0.16 |
| Shunt Coil Tripping Current | A | J:DC 2.5/1.3 |
| Contact Form | mm | 5.5~7 |
| Contact Distance | mm | 1.5±0.5 |
| Average Closing Speed | m/s | 0.1~0.25 |
| Average Break-Brake Speed | m/s | 0.3~0.6 |
| Three Phase Break-Brake Synchronism | ms | ≤2 |
| Resistance (20℃) | μΩ | ≤250 |
Additional Information
Normal Working Conditions:
- Altitude above sea level should not exceed 1,000m
- Ambient temperature range: -5 to 40°C
- Average temperature in 24 hours should be limited below 35°C
- At 40°C, relative humidity should not exceed 50%
- Pollution degree: class 3
