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    Item No.: LY1-C40M/1(S)+1

    LY1-C40M/1(S)+1Pluggable single-Pole SPD

    Description：

    Classl·Classll·Type1.Type 2
    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 l+ll /Type 1+2
    Protective Elements: High Energy MOV and GDT
    Housing: Pluggable Design
    Compliance: lEC 61643-11:2011
    EN 61643-11:2012

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      Our mini size 40kA 1P+N GDT AC surge protective device is specially engineered for single-phase systems that require a coordinated protection structure. As a professional manufacturer, factory, and OEM/ODM supplier, we support wholesale, in bulk, and bulk buy orders for global clients demanding reliable power protection components. This P+N design integrates a GDT surge module (Ne gas) working together with optimized protective circuitry to provide high protective performance against lightning and transient overvoltage.

      Made with durable PVC/PA66/PBT housing, the device offers excellent insulation, heat resistance, and mechanical strength, making it suitable for large-scale deployment in residential buildings, commercial facilities, and industrial power distribution cabinets. The mini size format allows installation in compact systems while still delivering a high surge capacity of 40kA, ensuring robust protection for AC circuits and connected loads.

      Applicable scenarios / Application industries

      Designed for 35mm DIN-rail installation, it is ideal for small control panels, solar AC output protection, UPS input/output, energy storage systems, and modular distribution boards. It adheres to IEC 61643-11:2011 / EN 61643-11:2022 safety standards and is certified with CE & TUV, ensuring reliability for international markets. As a wholesale-oriented factory, we offer full OEM customization, including label printing, housing design, and circuit tuning. This mini size P+N GDT SPD is the perfect choice for distributors seeking compact, efficient, and factory-direct surge protection solutions.

      ■ Technical Data
      IEC Electrical 75 150 275 320
      Nominal AC Voltage (50/60Hz) Uo/ Un 60 V 120 V 230 V 230 V
      Maximum Continuous Operating Voltage (AC) (L-N) Uc 75V 150 V 275 V 320 V
      (N-PE) Uc 255 V
      Nominal Discharge Current (8/20 μs) (L-N) / (N-PE) In 20 kA / 20 kA
      Maximum Discharge Current (8/20 μs) (L-N) / (N-PE) Imax 40 kA / 40 kA
      Impulse Discharge Current (10/350 μs) (L-N) / (N-PE) Iimp 7 kA / 25 kA
      Voltage Protection Level (L-N) / (N-PE) Up 0.4 kV / 1.5 kV 1.0 kV / 1.5 kV 1.5 kV / 1.5 kV 1.6 kV / 1.5 kV
      (N-PE) Ifi 100 ARMS
      Response Time (L-N) / (N-PE) tA < 25 ns / < 100 ns
      Back-Up Fuse (max) 63 A gL/ gG
      Short-Circuit Current Rating (AC) (L-N) ISCCR 25 kA
      TOV Withstand 5s (L-N) UT 90 V 180 V 335 V 335 V
      TOV 120min (L-N) UT 115 V 230 V 440 V 440 V
      mode Withstand Safe Fail Safe Fail Safe Fail
      TOV Withstand 200ms (N-PE) UT 1200 V
      UL Electrical
      Maximum Continuous Operating Voltage (AC) (L-N) / (N-PE) MCOV 75 V / 255 V 150 V / 255 V 275 V / 255 V 320 V / 255 V
      Voltage Protection Rating (L-N) / (N-PE) VPR 330 V / 1200 V 600 V / 1200 V 900 V / 1200 V 1200 V / 1200 V
      Nominal Discharge Current (8/20 μs) (L-N) / (N-PE) In 20 kA / 20 kA 20 kA / 20 kA 20 kA / 20 kA 20 kA / 20 kA
      Short-Circuit Current Rating (AC) (L-N) SCCR 100 kA 200 kA 150 kA 150 kA
      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-C40M/1(S)+1Pluggable single-Pole SPD

      1. What is the LY1-C40M/1S+1 used for?

      The LY1-C40M/1S+1 is a single-pole Type 2 SPD designed for AC low-voltage systems. It provides reliable surge protection using upgraded C40M MOV technology.

      2. Is the module pluggable?

      Yes. The SPD features a pluggable insert design, making installation and replacement extremely convenient during routine maintenance.

      3. Does this model include thermal protection?

      Yes. A built-in thermal disconnection device isolates the MOV automatically in case of overheating or overload, ensuring safe operation.

      4. What installation scenarios are recommended?

      It is suitable for residential distribution boards, commercial electric cabinets, final circuits, and any single-phase AC mains requiring Type 2 surge protection.

      5. Which standards does it comply with?

      This model adheres to IEC/EN 61643-11 surge protection requirements and passes CE and TUV certification.

      6. Do you support OEM/ODM customization for distributors?

      Yes. We offer full OEM/ODM service, including private labeling, housing customization, parameter tuning, and package design.

      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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