Manufacturer of LFD high-voltage auxiliary switch circuit breaker switch

Rated voltage: DC220V AC500V
Rated current: 20A
Agreed heating current: 25A
Breaking capacity: T0.95:6P=300ms 5A Cos φ= 0.95 15A
Applicable temperature range: -40 ℃~+70 ℃
Power frequency withstand voltage: 2500V (50Hz)/1min
Mechanical life: 20000 times
Product Overview
The LFD series auxiliary switch is one of the supporting components of high-voltage complete equipment, with a compact switch structure. The thickness of each switch section is only 6.5mm, which is about half of the thickness of the typical auxiliary switch section. The switch adopts a cam structure and permanent magnet arc extinguishing method, greatly enhancing the breaking capacity of the switch. It is widely used to control the opening, closing, interlocking, signal circuit of various high-voltage switch operating mechanisms, and can also be used as a conversion or combination switch.
environment condition
1. Surrounding environment temperature: -40 ℃~+70 ℃;
2. Altitude: not exceeding 5000 meters;
3. Humidity: Within 24 hours, the average relative humidity shall not exceed 95%; The average pressure of water vapor shall not exceed 2.2KPa; The monthly average relative humidity shall not exceed 90%; The average pressure of water vapor shall not exceed 1.8KPa;
4. The vibration acceleration shall not exceed 15m/s ²；
5. The surrounding air is not significantly polluted by dust, smoke, corrosive and combustible gases.