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    Item No.: LY1-C40/3(S)+1

    LY1-C40/3(S)+1PLUGGABLE MULTI-POLE SPD

    Description：

    Classll ·Type 2 ·Type 1CA
    Location of Use: Sub-Distribution Boards
    Mode of Protection: L-N, N-PE
    Surge Ratings: In = 20 kA (8/20 μs)
    IEC/EN/UL Category: Class ll /Type 2 /Type 1CA
    Protective Elements: High Energy MOV
    Housing: Pluggable Design
    Compliance:lEC 61643-11:2011
    EN 61643-11:2012

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      The 40kA 3P+N GDT AC surge protective device offers high-performance surge protection for three-phase + neutral AC power systems.
      Built with GDT + MOV ZnO technology, it provides excellent coordination, quick response, and long lifespan.
      Made with PVC/PA66/PBT housing, compliant with IEC 61643-11:2011 / EN 61643-11:2022, and certified by CE & TUV.
      We are an experienced OEM/ODM surge protection manufacturer and factory, supporting wholesale, bulk buy, and in bulk orders worldwide.

      Applicable scenarios / Application industries

      Ideal for solar combiner boxes, industrial control cabinets, and power distribution boards, with 35mm DIN rail installation.

      ■ 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 400V
      Maximum Continuous Operating Voltage (AC) (L-N) Uc 75V 150 V 275 V 320 V 385V 440V
      (N-PE) Uc 255 V
      Nominal Discharge Current (8/20 μs) (L-N) / (N-PE) In 20kV / 20kA
      Maximum Discharge Current (8/20 μs) (L-N) / (N-PE) Imax 40 kA / 40 kA
      Voltage Protection Level (L-N) / (N-PE) Up 0.4kV/1.5kV 1.0kV/1.5kV 1.5kV/1.5kV 1.6kV/1.5kV 1.8kV/1.5kV 2.0kV/1.5kV
      (N-PE) Ifi 100 ARMS
      Response Time (L-N) / (N-PE) tA < 25 ns / < 100 ns
      Back-Up Fuse (max) 315 A / 250 A gG
      Short-Circuit Current Rating (AC) (L-N) ISCCR 25 kA / 50 kA
      TOV Withstand 5s (L-N) UT 90 V 180 V 335 V 335 V 335 V 580V
      TOV 120min (L-N) UT 115 V 230 V 440 V 440 V 440 V 765V
      mode Withstand Withstand Safe Fail Safe Fail Safe Fail Safe Fail
      TOV Withstand 200ms (N-PE) UT 1200 V
      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-C40/3(S)+1 PLUGGABLE MULTI-POLE SPD

      1. How is the LY1-C40/3(S)+1 different from the single-pole version?

      The LY1-C40/3(S)+1 is a multi-pole (3P or 4P) Type 2 SPD, designed for three-phase AC power systems. It offers coordinated surge protection across all phases and neutral.

      2. What internal technology does this model use?

      This multi-pole SPD uses MOV-based protection with optimized energy-absorption capacity for balanced protection across all poles.

      3. Can the modules be replaced individually?

      Yes. Each pole features an independent pluggable cartridge, making maintenance simple and economical without replacing the entire unit.

      4. Where is this SPD commonly installed?

      It is used in three-phase distribution boards, industrial machinery panels, power control cabinets, elevator systems, HVAC panels, and other medium-to-large electrical installations.

      5. What certifications does this model carry?

      The LY1-C40/3(S)+1 complies with IEC 61643-11 / EN 61643-11 and is approved with CE and TUV certifications.

      6. Can this model be customized for different markets?

      Absolutely. Our factory provides OEM/ODM customization, including multi-pole configurations, labeling, technical adjustments, and private-label manufacturing.

      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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