Item No.: LYDS5/6/7 DC

LYDS5/6/7 DC ISOLATION SWITCHES

Description:

• Non-polarity DC Isolator Switch

• Modular design, optional 2-10 levels

• Positive contact or reverse contact optional

• Single Hole Mounting, Panel Mounting, Distribution Board, Door Clutch or Enclosure optional

• Dynamic sealing design and world class sealing materials guarantee an IP66 protection rate.

Quote Now

    The LYDS5/6/7 DC Isolator Switch is a versatile DC disconnect solution series designed to handle a range of current ratings and pole configurations for comprehensive DC power isolation.

    🔹 Key Technical Knowledge

    • Product type: Series DC isolator switch (multiple current/pole variants)

    • Rated voltage: Compatible with typical DC power systems 600–1500V DC

    • Contacts: Positive break DC switch mechanism

    • Installation: Flexible mounting (panel/DIN rail depending on variant)

    • Compliance: IEC 60947-3 for DC isolation

    • Manufacturer role: OEM-ready DC isolator series producer

    🔹 Use Cases / Industries

    • Solar photovoltaic DC power isolation

    • Energy storage system DC isolation

    • Battery banks and DC distribution panels

    • Telecom DC power racks

    • Industrial DC switchgear cabins

    🔹 OEM & Manufacturing Advantage

    As a professional DC isolator switch series manufacturer, we provide bulk supply, OEM/ODM services, customizable ratings, and technical support for international distributors and panel builders.

    Technical Data

    Main     Parameters
    ModelA1320254050
    Rated insulation voltage                UiV15001500150015001500
    Rated thermal current                    IthA3240555555
    Rated impulse withstand voltage         UimpV8000
    Rated short-time withstand current(1s) IcwA780
    Rated short-time making capacity        IcmA1200
    Maximum cable cross sections(ind.jumper)
    Solid or strandedmm²4-16
    Flexiblemm²4-16
    Flexible (+multicore cable end)mm²4-16
    Torque
    Tightening torque terminal screws M4.Nm1.2-1.8
    Tightening torque single hole mounting nut M16Nm2.0-2.3
    Tightening torque knob screws M3Nm0.5-0.7
    Switching on oroff torqueNm0.9-1.3
    General parameters
    Knob positions  12 o’clock OFF,3 o’cock ON(9 o’clock OFF,12 o’dock ON)
    Electrica LifeActual  3000 Cycles
    Standard  300 Cycles
    Mechanical LifeActual  10000 Cycles
    Standard  10000 Cycles
    Distance of contacts (per pole)mm  8
    Operation temperature  -40 to +85
    Store temperature  -40 to +85
    Pollution degree  3
    Overvoltage category  Ⅱ
    IP rating of shafte and mounting nut  IP66

    According to IEC/EN60947-3. Utilization category DC-PV1.

    LayersVoltage/current(DC-PV1)
    2/3/4/6/8/10600Vdc  800Vdc1000Vdc1200Vdc  1500VdcModel
    32  261310  5LYDS5(6)(7)XX/13/ZY
    40  302012  6LYDS5(6)(7)XX/20/ZY
    55  452515  8LYDS5(6)(7)XX/25/ZY
    /  504030  20LYDS5(6)(7)XX/40/ZY
    /  555040  30LYDS5(6)(7)XX/50/ZY
    4T/B/S/  /3226  13LYDS5(6)(7)XX/13/ZY
    /  /4030  20LYDS5(6)(7)XX/20/ZY
    /  /5540  30LYDS5(6)(7)XX/25/ZY
    /  ///  45LYDS5(6)(7)XX/40/ZY
    /  ///  50LYDS5(6)(7)XX/50/ZY

    According to AS60947.3. Utilization category DC-PV2.

    Layers  Voltage/current(DC-PV2)
    2/3/4/6/8/10600Vdc  800Vdc1000Vdc1200Vdc  1500VdcModel
    13  1364  3LYDS5(6)(7)XX/13/ZY
    20  1586  4LYDS5(6)(7)XX/20/ZY
    25  23108  5LYDS5(6)(7)XX/25/ZY
    40  302015  8LYDS5(6)(7)XX/40/ZY
    50  402518  10LYDS5(6)(7)XX/50/ZY
    4T/B/S/3T/6T/9T/  /12/  /LYDS5(6)(7)XX/13/ZY
    /  /18/  /LYDS5(6)(7)XX/20/ZY
    /  /20/  /LYDS5(6)(7)XX/25/ZY
    /  /40/  /LYDS5(6)(7)XX/40/ZY
    /  /50/  /LYDS5(6)(7)XX/50/ZY

    According to UL508I. Utilization category UL.

    Layers  Voltage/current(UL 508i)
    2/3/4/6/8/10  600VDC   800VDC1000VDC  Model
      30   3013  LYDS5(6)(7)XX/13/ZY
      30   3020  LYDS5(6)(7)XX/20/ZY
      30   3025  LYDS5(6)(7)XX/25/ZY
      30   3030  LYDS5(6)(7)XX/30/ZY

    Note* 10P products needs to be customized, please kindly contact us if need them

    • Non-polarity DC Isolator Switch

    • Modular design, optional 2-10 levels

    • Positive contact or reverse contact optional

    • Single Hole Mounting, Panel Mounting, Distribution Board, Door Clutch or Enclosure optional

    • Dynamic sealing design and world class sealing materials guarantee an IP66 protection rate.

    Select Code

    🔹 FAQ – LYDS5/6/7 DC Isolator Switch

    1. What does the LYDS5/6/7 series cover?
      Multiple variants of DC isolator switches for different current and pole configurations.

    2. Can this series be used in solar PV applications?
      Yes — ideal for DC string isolation and PV array manual disconnection.

    3. Is arc control handled effectively?
      Yes — positive break design and DC-rated contacts minimize arcing risk.

    4. Which standards does it follow?
      Designed to meet IEC 60947-3 DC isolator switch requirements.

    5. Is OEM customization possible?
      Yes — factory supports branding, packaging, and specification customization.

    Start Customizing Now

    We offer a full range of customised services, working closely with our customers every step of the way, from concept design to final delivery.

    Other&Products

    Our team is always guided by the needs of our customers, providing professional consultation and support to ensure your satisfaction.

    ANYTHING YOU COULDN’T FIND?

    Talk With Our Sales

    We know that every business is unique, so we offer customized services to ensure that our products perfectly match your specific needs:

    • Comprehensive brochure you can download
    • 15 years factory experience
    • Fast delivery
    • OEM&ODM
    • Low price
    • Small MQQ

    SEND US AN EMAIL

    devin@cnspd.com

    Contact Us

    We constantly evaluate and improve our processes to ensure that we are delivering the most efficient and reliable electrical products on the market.