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unang pahina > Sentro ng Produkto > Switchgear Fittings > Earthing Switch > JN15-12/31.5 Indoor Earthing Switch 3 12kV AC 50 60Hz HV Switchgear Protection

JN15-12/31.5 Indoor Earthing Switch 3 12kV AC 50 60Hz HV Switchgear Protection

    JN15-12/31.5 Indoor Earthing Switch 3 12kV AC 50 60Hz HV Switchgear Protection

    The JN15-12/31.5 Indoor Earthing Switch is engineered for 3-12kV AC power systems operating at 50-60Hz. It provides reliable earthing, modular integration, and high-voltage switchgear protection. Designed for industrial and utility applications, it ensures safe maintenance, fault isolation, and personnel safety, improving operational reliability in medium-voltage indoor switchgear systems.
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Product definition


Indoor High Voltage Earthing Switch


Working Condition

  • Ambient temperature:-10°C-+40°C;

  • Altitude: ≤1000m;

  • Relative humidity: Daily average ≤ 95%,

  • Monthly average ≤ 90%

  • Earthquake intensity:≤ 8 degree;

  • Dirtiness degree: ll.

Technical Parameters


No.ItemUnitData
1Rated voltageKV12
2Rated short time withstand currentKA31.5
3Rated short circuit withstand timeS4
4Rated short circuit making currentKA80
5Rated peak withstand currentKA80
6Rated insulation level1min power frequency withstand voltageKV42
Lightning Impulse withstand voltage75
7Mechanical lifeTIMES2000


Installation drawing and hole location diagram


Indoor High Voltage Earthing Switch



Indoor High Voltage Earthing Switch


SpecificationEFGHDC
EK15-12/31.5-16516575160565426
EK15-12/31.5-18018075160595456
EK15-12/31.5-20020075160635496
EK15-12/31.5-21021075160655516
EK15-12/31.5-22022075160675536
EK15-12/31.5-2302307516069555696
EK15-12/31.5-2502507516073559696
EK15-12/31.5-2752757518581064696


Order notes:

Please indicate the product specifications and the central distance between poles.

Please confirm whether the electrical display model number is required.

Note the soft link length when ordering (normal length =250mm).

If you have any special requests, please consult us.


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