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    Item No.: LY1-D20/2(S)

    LY1-D20/2(S) PLUGGABLE SINGLE-POLE SPD

    Description：

    Classll ·Class lll ·Type 2 ·Type 3
    Location of Use: Sub-Distribution Boards
    Mode of Protection: L-PE, N-PE
    Surge Ratings: In = 10 kA (8/20 μs)
    IEC/EN/UL Category: Class ll+ll /Type 2+3
    Protective Elements: High Energy MOV
    Housing: Pluggable Design
    Compliance: lEC 61643-11:2011
    EN 61643-11:2012

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      The 20kA 2 pole surge protective device provides dual-line surge suppression for light industrial and home applications.
      Built with high-quality MOV ZnO components, it protects against lightning and transient voltage surges.
      Its body uses PVC/PA66/PBT materials, ensuring strong durability and insulation.
      Compliant with IEC 61643-11:2011 / EN 61643-11:2022, approved by CE & TUV.
      As a factory-direct manufacturer and supplier, we support OEM/ODM, wholesale, and in bulk purchases.

      Applicable scenarios / Application industries


      This SPD is suitable for solar power systems, AC control panels, and distribution boards, installed easily via 35mm DIN rail.

      ■ Technical Data
      IEC Electrical 75 150 275 320 385 440
      Nominal AC Voltage (50/60Hz) Uo/ Un 60 V 120 V 230 V 230 V 230 V 400 V
      Maximum Continuous Operating Voltage (AC) Uc 75 V 150 V 275V 320 V 385 V 440 V
      Nominal Discharge Current (8/20 μs) In 10 kA 10 kA 10 kA 10 kA 10 kA 10 kA
      Maximum Discharge Current (8/20 μs) Imax 20 kA 20 kA 20 kA 20 kA 20 kA 20 kA
      Voltage Protection Level Up 0.2 kV 0.6 kV 1.3 kV 1.5 kV 1.5 kV 1.8 kV
      Response Time tA < 25 ns
      Back-Up Fuse (max) 125 A gL / gG
      Short-Circuit Current Rating (AC) ISCCR 10 kA
      TOV Withstand 5s UT 90V 180V 335V 335V 335V 580V
      TOV 120min UT 115V 230V 440V 440V 440V 765V
      mode Withstand Withstand Safe Fail Safe Fail Safe Fail Safe Fail
      Mechanical & Environmental
      Operating Temperature Range Ta -40ºF to +158ºF [-40ºC to +70ºC]
      Permissible Operating Humidity RH 5%…95%
      Atmospheric pressure and altitude 80k Pa … 106k Pa / -500 m…… 2000 m
      Terminal Screw Torque Mmax 39.9 Ibf·in[4.5 Nm]
      Conductor Cross Section (max) 2 AWG (Solid, Stranded) / 4 AWG (Flexible)
      35 mm² (Solid, Stranded) / 25 mm²(Flexible)
      Mounting 35 mm DIN Rail, EN 60715
      Degree of Protection IP 20 (built-in)
      Housing Material Thermoplastic: Extinguishing Degree UL 94 V-0
      Thermal Protection Yes
      Operating State / Fault Indication Green ok / Red defect
      Remote Contacts (RC)
      RC Switching Capacity
      RC Conductor Cross Section (max)      		 Optional
      AC: 250V / 0.5 A; DC: 250V / 0.1 A;125V / 0.2 A;75V / 0.5 A
      16 AWG (Solid) / 1.5 mm²(Solid)

      ■ Internal Configuration


      ■ Dimensions & Packaging


      ■ Connection Diagram

      FAQ for LY1-D20/2(S) PLUGGABLE SINGLE-POLE SPD

      1. What is the difference between the LY1-D20/2(S) and LY1-D20/1(S)?

      The LY1-D20/2(S) provides a higher surge-handling capability or optimized performance for certain AC systems, depending on installation requirements.

      2. What technology does this SPD use?

      It uses MOV-based surge absorption, engineered for repeated AC transients and stable long-term performance.

      3. Can the module be replaced independently?

      Yes, the pluggable design allows fast module swapping without disturbing the wiring.

      4. What installation scenarios are suitable?

      Ideal for AC final distribution boards, commercial electrical cabinets, small machinery panels, and general Type 2 surge protection points.

      5. Which standards and certifications apply?

      The LY1-D20/2(S) is fully compliant with IEC/EN 61643-11 and approved with CE and TUV certification.

      6. Is OEM/ODM supported?

      Yes, we provide label customization, color options, parameter customization, and full OEM/ODM services for distributors.

      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.

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