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LH-A series surge protection Device (hereinafter referred to as SPD)

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LH-A series surge protection Device (hereinafter referred to as SPD)

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LH-A series surge protection Device (hereinafter referred to as SPD)

LH-A series surge protection Device (hereinafter referred to as SPD) is suitable for 3+N protection mode design in three-phase four-wire systems of various power systems.

 

AC 50/60Hz, rated voltage 380V power supply system, used for neutral line and PE equipotential Between systems, protect indirect lightning and direct lightning effects or other transient overvoltage surges.

 

And combine with LH-12.5I, LH-15I, LH-25I, LH-30I, LH-50I series surge protectors Into: 2P, 3P, 4P and other combined SPDs to improve surge resistance.

 

According to IEC61643-11-2011 standard surge protector, level 1 surge protector, Class I test surge protector. The products comply with standards such as GB/T 18802.11 and IEC61643-1.

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    product details

    Structure and working principle

    LH-A series products are one-port indoor installation, voltage switch type SPD.

    The product is designed in accordance with national standards such as GB50057 and GB/T18802.11, and has the advantages of large inrush current and low residual voltage.

    Its core device is composed of multi-stage high-energy discharge tubes stacked with gaps.

    Through careful design, the product combines multi-stage discharge tubes to form a fully sealed structure. When the surge current passes through, no arc leakage will occur. There is no need to reserve a special space for arc leakage during installation, and the quality is stable and reliable.

    Install

    The product is installed at the junction of LPZ0A or PLZ0B and PLZ1 area, or at the main distribution box (cabinet) where the power supply is introduced, using a 35mm standard guide rail.

    The connecting wire is made of 6~35mm² multi-stranded copper soft wire.

    The grounding wire should be a two-color wire of more than 16mm², and the length should not be more than 500mm. In order to prevent the failure of the surge protector from affecting the safety of the power grid operation, the protector connected to the L line should be connected in series with a matching SCB backup protector.

    The main technical parameters

    42uc

    Installation dimensions

    5pn7