LOAD-ISOLATION SWITCHES can be operate under the following conditions:
Altitude not more than 2000m; The range of ambinet temperature is from 5to 40 ; Relative humidity not more than 95%; The environment without any explosive medium; The environment without any rain or snow attacking. Note:If the prouct is expected to be used in the environment where temperature is over +40 or below -5~-45 .user shall tell it to the manufacturer in advance. Application AC 50Hz,rated voltage 660V,DC rated voltage 440V,rated current up to 1600A.It is used for making and breaking circuit infrequently. YGLSeries Load isolation switches can be divided into 18 specs from 1250A to 4000A.it is the basic type of module desgin,it has three poles and foour poles(Theree ploes+switch neutral pole),applied to make and break circuit breaker or electric isolate,over 1000A is only for electric isolation.