Structure feature
GW9-12(W) disconnect switch is single type
1. This series switch have normal and anti-pollute two difference 
models, it composed of frame,support insulator, 
with power part and operating mechanism.
2. Each pole have two pieces blade, there is press spring near 
the contactor base and have adjusted nut to keep good contact 
press, there is a support structure on the blade, 
it can be locked after closing, so it will not be closing by itself 
under any condition, under normal or short-circuit condition, 
it can ensure the reliable performance of dynamic and thermic 
stability.

  Technical specification

Model	Rated  voltage (kV)	Rated  current (A)	4s short-time  withstand current(kV)	) Withstand  current (peak)	Rated insulation level
					Lightning impulse		Power frequency  withstand voltage(1min)
					Phase to  earth (kV)	Across open  contacts (kV)	Phase to earth wet (kV)
GW9-12/400  GW9-12W/400  GW9-12/630  GW9-12W/630  GW9-12W/1000	12 12 12	400 630 1000	12.5 20 20	31.5 50 50	75	85	34