JN17 Indoor Grounding Switch

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JN17 Indoor Grounding Switch

Our JN17 Indoor Grounding Switch is designed for various operating environments, suitable for ambient temperatures from -10°C to +40°C and altitudes up to 1000 meters. With superior performance in handling short-time withstand currents and rated voltages, this switch is built for reliability in seismic conditions of up to 8 degrees.
Key Specifications:
● Rated Voltage: 12kV
● Short Circuit Withstand Time: 4 seconds
● Insulation Level: Up to 75kV lightning impulse withstand
Choose the JN17 model that fits your application needs, available in multiple specifications to accommodate different installation dimensions.

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Product Details

Selection

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Operating conditions

1. Ambient temperature:-10~+40℃
2. Altitude: ≤1000m (sensor height:140mm)
3. Relative humidity: Day average relative humidity ≤95% Month average relative humidity ≤90%
4. Earthquake intensity: ≤8degree
5. Dirtiness degree: II

Technical data

Item		Units	Data
Rated voltage		kV	12
Rated short time withstand current		kA	40
Rated short circuit withstand time		s	4
Rated short circuit making current		kA	100
Rated peak withstand current		kA	100
Rated	1min power frequency withstand voltage	kV	42
insulation level	Lightning Impulse withstand voltage	kV	75
Mechanism life		time	2000

Overall and mounting dimensions(mm)

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Copper terminal block

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Hole location diagram

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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	185	695	556
JN17-12/40-250	250	50	185	735	596
JN17-12/40-275	275	50	210	810	646

Order notes:
1. Indicate product specification, central distance between poles, whether need the electric display device(type of the display) or not.
2. Need lengthen the soft link or not(normal L=250mm)
3. Please consult with our company if you have any special request.