JNA-12/S High Voltage Grounding SwitchDetailed product description：

JNA-12/S-type high-voltage grounding switch

The JNA-12/S series indoor high-voltage grounding switch (referred to as the grounding switch) is a brand new product developed to match our factory's high-voltage switchgear. It can also be matched with various other models of high-voltage switchgear. Its performance meets the requirements of GB1985-89 (AC high-voltage isolation switch and grounding switch), with advanced design, reliable technical performance, simple structure, easy installation and commissioning, and is equipped with high-voltage live display device.

Technical parameters of JNA-12/S-type high-voltage grounding switch

Product model and specifications	Rated voltage （kV）	highest Work voltage （kV）	4S hot stable electric current （kA）	Dynamic stability Current (Net worth) （kA）	Close the door Current (Net worth) （kA）	Rated Insulation Level （kV）	alternate distance （mm）	link together speed （m/s）	main circuit Contact Resistance （μΩ）
JNA-12/S25-210	ten	eleven point five	twenty-five	sixty-three	sixty-three	forty-two	two hundred and ten	≥5	<120
JNA-12/31.5-210			thirty-one point five	eighty	eighty
JNA-12/S25-220	ten	eleven point five	twenty-five	sixty-three	sixty-three	forty-two	two hundred and ten	≥5	<120
JNA-12/S31.5-220			thirty-one point five	eighty	eighty
JNA-12/S25-250	ten	eleven point five	twenty-five	sixty-three	sixty-three	42	two hundred and ten	≥5	<120
JNA-12/31.5-250			thirty-one point five	eighty	eighty
JNA-12/S25-275	ten	eleven point five	twenty-five	sixty-three	sixty-three	forty-two	two hundred and ten	≥5	<120
JNA-12/31.5-275			thirty-one point five	eighty	eighty