JN15-12/31.5 indoor high-voltage grounding switch is a new grounding switch with foreign level developed by our company according to the prototype design of ES1 grounding switch. The structure is assembled, the performance meets the requirements of GB1985-2004 "AC high voltage isolation switch shape and ground switch" and IEC129, suitable for indoor 3-12KV three-phase AC 50(60)Hz power system; It has a certain closing ability to protect other electrical equipment in the switchgear from damage, and can be used with a variety of high-voltage switchgear as a grounding protection during the maintenance of high-voltage electrical equipment.

JN15-24/31.5 series indoor high voltage grounding switch is a new grounding switch newly developed by our company. The product has the characteristics of excellent design, simple and compact structure, reliable technical performance, etc., in line with the requirements of GB1985-2004 "AC high voltage isolation switch and ground switch" and IEC62271-102:2002, suitable for indoor 24kV three-phase AC 50(60)Hz power system; It has the short-circuit closing ability to protect other electrical equipment in the switchgear from damage, and can be used with a variety of high-voltage switchgear as a grounding protection during the maintenance of high-voltage electrical equipment.

JN17-12/40(the original model JN15-12/40 is changed to JN17-12/40 in order to distinguish it from the market) model internal high voltage ground switch is a new ground switch with national standard developed by our company according to the prototype design of ES1 type ground switch. The structure is a combined type, its performance meets the requirements of GB1985-2004 "AC high voltage isolation switch shape and ground switch" and IEC129, suitable for indoor 3-10 kV three-phase AC 50(6O)Hz power system; It has a certain closing ability to protect other electrical equipment in the switchgear from damage, and can be used with a variety of high-voltage switchgear as ground protection during the maintenance of high-voltage electrical equipment.

JN22-40.5/31.5 indoor high voltage grounding switch (hereinafter referred to as grounding switch) is a new product developed by the company. Its performance meets the requirements of the national standard GB1985-2004 "AC high voltage isolation switch and ground switch" and IEC62271-102:2002. Suitable for three-phase rated voltage 40.5kV, AC 50Hz power system, can be used with KYN61-40.5 high voltage switchgear and other types of high voltage switchgear, as high voltage electrical equipment maintenance ground protection.