The insulation for stator is class B and for rotor is Class B. The protection class is IP21.

This series generator leave out traditional ring and brush equipment and use brush less excitation magnetic to avoid any problem caused from grind by brush and ring.

It adopts automatic voltage adjustment system to adjust the currency of excitation magnetic machine stator by A.V.R. The generator is good looking with strong and durable construction, very convenient to maintain. As a small type generating station, it can be used in factories, buildings and work sites for lightening and electric power source.