Isolation switch YGL series 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.

YGL Series 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.
Symbol window on front show indicates the contact ON-OFF status.
Operation Mode
Direct Operation:The handle is installed in the middle of switch directly.
Operate otside of cabinetL:The handle is installed outside of distribution cabinet.
It can be assembled two group auxiliary contacts.