gw27-1100
gw27-800
gw27-550
gw27-420
gw27-363
gw27-252
main features:
1.double break type，three-column horizontal with the rotatable middle column;
2.stable and reliable operation, small operating force, high technical parameters and long mechanical life.
3.it meets the requirements of iec 62271-1 and iec 62271-102;
