Jn17-12/40 Combined Grounding Switch

Application

JN17-12/40 (old type is JN15-12/40) series indoor high voltage earthing switch is a new design and improved product of us according to the ESI type, the structure is assembled, suitable with electric power system with 3-10KV, Three-phase,AC 501601Hz, support with various kinds of HV switchgear and earthing protection. It is complied with GB1985-2004 and IEC129 standard.

Specifications

Working condition

Ambient temperature：-10°C 一+40°C
Allitude：1000m Isensor heighi：140mm)
Relative humidity： Day average relative humidity w 95% Month average relative humidity w <90%
Earthquake intensity： w 8degree
Dirtiness degree： II

Parameter

Mainly technical parameters

	Item	Unit	Data
	Rated voltage	KV	12
	Rated short time withstand current (thermal stability)	KA	40
	Rated short circuit withstand time	S	4
	Rated short circuit making current	KA	100
	Rated peak withstand current (dynamic stability)	KA	100
Rated insulation leve	Rated short time power frequency withstand voltage	KV	42
Rated insulation leve	Rated lightning impulse withstand voltage	KV	75
	Machinery Life	time	2000

JN17-12/40earthing switch(ES-10/31.5) Outline and installation dimension

Specification	E	F	G	H	D
JN17-12/40-210	210	50	185	655	516
JN17-12/40-220	220	50	185	675	536
JN17-12/40-230	230	50	85	695	556
JN17-12/40-250	250	50	185	735	596
JN17-12/40-275	275	50	210	810	646

Order notesdndicate product specification, central distance between poles, if the electric display deviceltype ot me displaylneeded or not Please note the soft link length when ordering (normal L=250mm).

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