AC 50Hz, rated voltage 660V, DC rated voltage 440V, rated curent 1600A. t is used for making and breaking circuit infrequently.

GL Loadisclation switch can be divided into 18 specs from 63A to 3150A it is the basic type of module design, it has three poles and four poles ( three pdles +switch neutral pole), applied to make and break circuit or electric isolate, over 1000A is only for electric isolation.

Symbol window on front face indicates the contact on-off state.