33kV isolator disconnector disconnecting switch

Technical data
Item Specification Unit parameter
1 Rated voltage KV 40.5
2 Rated frequency Hz 50
3 Rated current A 630
4 Rated short-time withstand current KA/s 20/2
5 Rated peak withstand current KA 50
6 Lightning impulse withstand To earth kV 185
voltage (peak) Between open contacts kV 215
7 1 min power frequency To earth kV 95
withstand voltage (r.m.s.) Between open contacts kV 115
8 Mechanical endurance times 2000
Remarks: GW4-40.5/630-20 with no earthing switch.

GW4-40.5D/630-20 with earthing switch, it has two types: single earthing switch and
double earthing switch.

33kV isolator disconnector disconnecting switch