
This series of 40.5kV high voltage vacuum contactors is developed by our company in accordance with the market requirements.
This series of 40.5kV high voltage vacuum contactors is developed by our company in accordance with the market requirements. The contactors are equipped with high-quality vacuum arc-extinguishing chambers and are made according to a modern layout with vertical arrangement of elements, which ensures small dimensions, light weight, ease of operation and stable characteristics. They are used in distribution systems of metallurgical, mining, petrochemical enterprises and other industrial facilities to control electric motors, transformers and capacitive loads with voltages up to 40.5 kV and below. Used as a main switch for remote control, they are characterized by stable and reliable operation. Available in two versions: with a magnetic mechanism and with electric fixation.
1. The contactors are equipped with a magnetic mechanism and an intelligent controller, which ensures long service life, phase synchronism, no contact jumping, stability and reliability.
2. The main circuit is made of cast poles with a fully sealed structure, which has high insulation performance and is suitable for frequent switching under harsh operating conditions.
3. Can be customized in single-pole, double-pole and triple-pole versions for use in various equipment as main and shunt switches, as well as the main switch in SVG devices.
| Parameter | 160/250-40.5kV | 400/40.5kV | 630/40.5kV | 800/40.5kV | 1000/1250-40.5kV |
| Rated voltage of the main circuit, kV | 40.5 | 40.5 | 40.5 | 40.5 | 40.6 |
| Rated current of the main circuit, A | 160,250 | 400 | 630 | 800 | 1000/1250 |
| Switching capacity of the main circuit (switching on), A / 100 cycles | 2500 | 4000 | 6300 | 8000 | 10000 |
| Switching capacity of the main circuit (shutdown), A / 25 cycles | 2000 | 3200 | 5000 | 6000 | 8000 |
| Ultimate breaking capacity, A / 3 cycles | 4000 | 4500 | 6300 | 8000 | 10000 |
| Wear resistance of the mechanism with permanent magnets, 10 thousand cycles | 10 | 10 | 10 | 10 | 10 |
| Power frequency test voltage of the main circuit (with open contacts), kV | 85 | 85 | 85 | 85 | 85 |
| Power frequency test voltage (between phases / phase-ground), kV | 95 | 95 | 95 | 95 | 95 |
| Test lightning impulse voltage, kV | 185 | 185 | 185 | 185 | 185 |
| Rated operating frequency, cycles/h | 100 | 100 | 100 | 100 | 100 |
| Gap between contacts, mm | 15±2 | 15±2 | 15±2 | 15±2 | 15±3 |
| Contact overtravel, mm | 3±1 | 3±1 | 3±1 | 3±1 | 3±2 |
| Main circuit resistance, µOhm | ≤200 | ≤200 | ≤200 | ≤200 | ≤200 |
| Auxiliary circuit control voltage, V | AC or DC: 110 / 220 / 380 or customized | ||||