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China JN15 Series Indoor High Voltage Grounding Switch - Reliable Earthing Solution from Leading Suppliers and Factory
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JN15 Series indoor high voltage grounding switch.jpg

China JN15 Series Indoor High Voltage Grounding Switch - Reliable Earthing Solution from Leading Suppliers and Factory

Introducing the JN15 Series, a premier indoor high voltage grounding switch designed for 12kV, 50/60Hz systems. As a KEMA-certified product, this switch meets the stringent standards of GB1985 and IEC129, ensuring reliable earthing protection in various applications. Manufactured in China, our factory employs advanced engineering to deliver a robust construction, featuring essential mechanical components that guarantee long-lasting performance. Additionally, an optional electronic display enhances user experience and safety. Trust in our JN15 Series for safe maintenance and proven reliability, backed by leading suppliers in the industry
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    Product Details

    ⚙ Technical Specification
    Item Units Parameters

    Rated voltage

    kV

    12

    Rated short-time withstand current

    kV

    31.5

    Rated short-circuit duration

    S

    4

    Rated circuit-time making current

    kA

    80

    Rated peak withstand current

    kA

    80

    Central distance between poles

    mm

    150 / 210 / 275

    Rated insulating level

    1 min. PF withstand voltage

    kV

    To earth, phase to phase / fracture

    42 / 48
    42 / 48

    Lightning impulse withstand voltage
    📄 Product Model
    Product Model Diagram
    📏 Dimension
    Dimension Diagram
    Model L (mm) E (mm) C (mm)

    JN15-12/31.5-210

    655

    210

    516

    JN15-12/31.5-230

    710

    230

    556

    JN15-12/31.5-250

    760

    250

    596

    JN15-12/31.5-275

    810

    275

    646
    ❓ Frequently Asked Questions
    Q
    What is the rated voltage of the JN15-12 earthing switch?
    The rated voltage of the JN15-12 earthing switch is 12 kV, making it suitable for medium-voltage switchgear applications.
    Q
    What is the rated short-time withstand current and duration?
    The rated short-time withstand current is 31.5 kV, and the rated short-circuit duration is 4 seconds, ensuring reliable performance under fault conditions.
    Q
    What are the available central distances between poles?
    The JN15-12 series offers central distances between poles of 150 mm, 210 mm, and 275 mm, providing flexible installation options to match different switchgear configurations.
    Q
    What is the rated peak withstand current of this earthing switch?
    The rated peak withstand current is 80 kA, which ensures the switch can safely handle high transient currents during short-circuit events.
    Q
    What are the insulation withstand voltage levels for the JN15-12?
    The rated insulating level includes a 1-minute power frequency (PF) withstand voltage of 42/48 kV and a lightning impulse withstand voltage of 42/48 kV, both applicable to earth, phase-to-phase, and fracture conditions.
    Q
    How do I select the correct JN15-12 model based on dimensions?
    You can select the appropriate model based on the required pole distance (E) and overall length (L). For example, the JN15-12/31.5-210 has L=655 mm, E=210 mm, C=516 mm, while the JN15-12/31.5-275 has L=810 mm, E=275 mm, C=646 mm. Refer to the dimension table above for all available options.