Overview：

ZFC developed LW□-40.5/72.5/126/145 series of outdoor SF6 gas circuit breaker using modern processing technology and computer-aided design

techniques, combined with the latest generation of spring bodies and the advantages of a permanent institution. Its pursuit of high reliability, easy to maintain design concepts to create ageneration of superior product, is the most reliable electric power system and the best option.

All series switches meet the following criteria:

 ANS/IEEE C37.60/IEC 62271-100(GB1984-2003 China standard)

 GBT11022-1999 China Standard
    IEC 60255-11
    IEC 60255-21-1 Class I
    IEC 60255-21-2 Class I
    IEC 60255-21-3 Class I
    IEC 60255-22-1 Class III
    IEC 60255-22-2 Class IV
    IEC 60255-22-3 Class III
    IEC 60255-22-4 Class IV

Using of the enviroment:

Ambient temperature:-40℃~+40℃, the daily average temperature:25℃;

Altitude:≤ 3000m（in excess of the value of technical discussions with the divisionI);

Wind speed：35m/s;

Earthquake intensity: not more than 8 degrees;

Degree of ambient air contamination level not greater than:III level;

Daily average ambient air relative humidity≤95%, on average≤90%;

Saturated vapor pressure of daily mean values≤ 2.2*10^(-3)MPa, on average≤1.8*10^(-3)MPa;

More about the use of environment conditions, please consult with the manufacturer.

Main technical specifications:

Note: For short circuit breaking current & rated current is optional by clients.