LFD Series auxiliary switch
Rated voltage: DC220V AC500V

Rated current: 20A

Agreed heating current: 25A

Breaking capacity: T0.95: 6P=300ms 5A Cosφ=0.95 15A

Applicable temperature range: -40℃~+70℃

Power frequency withstand voltage: 2500V (50Hz) /1min

Mechanical life: 20,000 times

Consultation hotline: +86-024-82666888/+86-15710569019

Product profile

LFD series auxiliary switch is one of the supporting components of high-voltage complete equipment. The switch structure is compact. The thickness of each switch section is only 6.5mm, which is about half the thickness of each section of the usual auxiliary switch. The switch adopts cam structure and permanent magnet magnetic blowing arc extinguishing method. , greatly enhances the breaking capacity of the switch, and is widely used to control the opening, closing, interlocking, and signal circuits of various high-voltage switch operating mechanisms. It can also be used as a conversion or combination switch.

Applicable industry

1. Ambient temperature: -40℃~+70℃;

2. Altitude: no more than 5,000 meters;

3. Humidity: the average relative humidity within 24 hours does not exceed 95%; the average water vapor pressure does not exceed 2.2KPa; the monthly average relative humidity does not exceed 90%; the average water vapor pressure does not exceed 1.8KPa;

4. Vibration acceleration is not greater than 15m/s²;

5. The surrounding air is not significantly contaminated by dust, smoke, corrosive and flammable gases.

Technical parameter
n=number of substrates; L, L1, L2=customer requirements.

Rated current

20A

Agreed heating current

25A

Rated voltage

直流DC

交流AC

220V

500V

Breaking capacity (>1°/ms)

T0.95 6P=300ms

Cosφ=0.95

5A

15A

Power frequency withstand voltage

2500V(50Hz) /1min

Mechanical life

20000

Switch profile

n=基板数;L、L1、L2=客户要求。