Ckj5 Series Low Voltage Vacuum Contactor with Big Current
Ckj5 Series Low Voltage Vacuum Contactor with Big Current image
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Basic Info.
Product Description
General description
This series of contactors use vacuum switch tubes as arc extinguishing components, which have the characteristics of no arc flash, long life, no noise, small size, safe and reliable. It can be widely used in the power network of AC 50/60 Hz and rated operating voltage of 1140 volts to connect and disconnect circuits, and form an electromagnetic starter with appropriate thermal relays or electronic protection devices and other related protection devices, especially suitable for forming Explosive electromagnetic starter and various power control screens. It is the most ideal circuit device for coal, petroleum, chemical industry, metallurgy, machinery, transportation and power industries.
Technical parameters
| Main circuit rated voltage | kV | 1.14 | ||
| Main circuit rated current | A | 1000 | 1250 | 1600 |
| Main circuit making capacity | A/100times | 6000 | 6000 | 6000 |
| Main circuit breaking capacity | A/10times | 4800 | 5000 | 5000 |
| Limit breaking capacity | A/ 3 times | 6000 | 6000 | 6000 |
| Electrical life AC3 | Ten-thousand times | 20 | ||
| Electrical life AC4 | Ten-thousand times | 2 | ||
| Mechanical life time | Ten-thousand times | 100 | ||
| Rated operating frequency AC3 | times/h | 100 | ||
| Rated operating frequency AC4 | times/h | 120 | ||
| Short-time operation | times/h | 3000 | ||
| Contact opening | mm | 3±0.5 | ||
| Over travel | mm | ≥1.3 | ||
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