GW4B-40.5 outdoor high voltage disconnector(iAir breaker switch) is a three phase AC switching device for 50 to 60 Hz high voltage. It is used for breaking the circuit when there is voltage but without load in the power system with the maximum voltage but without load in the power system with the maximum voltage of 40.5kV.

The structure of the earthed switching part is divided into 3 types: No earthing, single or double earthing. It can also be divided into two types according to areas in which it is used: Ordinary or anti-dirt type. The earthing switch has a structure of type I or type II and the electric parameters of the type II earthing switch has the same short-circuit withstand ability as the disconnector switch.

The product is privided with a manual operating device and a electromagnetism lock can aslo be fitted to prevent from wrong op-eration.

Spare parts and exposed parts are made of stainless steel or processed with aluminum alloy processing technology or hot - Zinc-plating technology to ensure operation with no corrosion for a long period of time, and further ensure the flexibility and reliability of the product, satisfy the requirements in the different aresa.