Intro:This product is suitable for indoor AC 50Hz, rated voltage 3.6kV, 7.2kV, 12kV, 24kV, 40.5kV system. It can be used in conjunction with other switching appliances such as load switches and vacuum contactors. It is also a necessary accessory product for high-voltage switch frame, ring network frame, and high/low voltage prefabricated substations.