China XUCKY Electric customized JN17-50 combined grounding 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.
Product definition of JN17-50 Combined Grounding Switch
JN17-50 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.
Working condition
1. Ambient temperature: -10°C 一+40°C
2. Allitude: 1000m Isensor heighi: 140mm)
3. Relative humidity: Day average relative humidity w 95% Month average relative humidity w <90%
4. Earthquake intensity: w 8degree
5. Dirtiness degree: II
Mainly technical parameters of JN17-50 Combined Grounding Switch
Item
Unit
Data
Rated voltage
KV
12
Rated short time withstand current (thermal stability)
KA
50
Rated short circuit withstand time
S
4
Rated short circuit making current
KA
125
Rated peak withstand current (dynamic stability)
KA
125
Rated insulation leve
Rated short time power frequency withstand voltage
KV
42
Rated lightning impulse withstand voltage
75
Machinery Life
time
2000
JN17-12/50 earthing switch (ES-10/31.5) Outline and installation dimension
Copper terminal block
Hole location diagram
Specification
E
F
G
H
D
JN17-12/5O-21O
210
50
185
655
516
JN17-12/50-220
220
50
185
675
536
JN17-12/50-230
230
50
85
695
556
JN17-12/50-250
250
50
185
735
596
JN17-12/50-275
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).
Please consult with us if you have any special request.
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