QG2 Series fuse type isolating switch passed 3C certification conform standard GB14048.3, IEC947 ... of underpan, base, cover, handle and shield. NT series fuse link is installed in the cover to act as knife ... based on the pivot of underpan,mades the cover and fuse make and break together, it is with enough space ... .which ensures bresking capability of the switch. QG2 SERIES FUSE TYPE ISOLATIONG SWITCH