Item No.: LY1-D20/1(S)+1

LY1-D20/1(S)+1PLUGGABLE SINGLE-POLE SPD

Description:

Class ll ·Class lll ·Type 2 ·Type 3
Location of Use: Sub-Distribution Boards
Mode of Protection: L-N, 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 and GDT
Housing: Pluggable Design
Compliance: lEC 61643-11:2011
EN 61643-11:2012

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    Our 20kA 1P+N GDT AC surge protective device combines GDT + MOV ZnO technology, offering coordinated discharge performance for single-phase + neutral systems.
    It ensures fast response to lightning surges and minimal residual voltage.
    The housing uses PVC/PA66/PBT materials for safety, insulation, and durability.
    Complies with IEC 61643-11:2011 / EN 61643-11:2022, certified by CE & TUV.
    As a manufacturer, supplier, and OEM/ODM factory, we offer wholesale, bulk buy, and in bulk options for worldwide distributors.

    Applicable scenarios / Application industries

    Perfect for residential control panels, solar systems, and combiner boxes, installed 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 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 10kV / 10kA
    Maximum Discharge Current (8/20 μs) (L-N) / (N-PE) Imax 20 kA / 20 kA
    Voltage Protection Level (L-N) / (N-PE) Up 0.2kV/1.5kV 0.6kV/1.5kV 1.3kV/1.5kV 1.5kV/1.5kV 1.5kV/1.5kV 1.8kV/1.5kV
    (N-PE) Ifi 100 ARMS
    Response Time (L-N) / (N-PE) tA < 25 ns / < 100 ns
    Back-Up Fuse (max) 125 A gL/gG
    Short-Circuit Current Rating (AC) (L-N) ISCCR 10 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-D20/1(S)+1PLUGGABLE SINGLE-POLE SPD

    1. What type of SPD is the LY1-D20/1(S)+1?

    It is a single-pole Type 2 pluggable SPD, offering compact AC surge protection in small-scale electrical systems.

    2. What protection component technology is used?

    This model uses MOV-based surge protection, engineered for rapid clamping of overvoltage transients.

    3. Is the module easily replaceable?

    Yes. The plug-in design allows quick replacement without removing the wiring.

    4. What are the main applications?

    It is suitable for residential distribution boards, compact AC electric boxes, office power circuits, and commercial AC protection points.

    5. Does it meet international safety standards?

    Yes, the LY1-D20/1(S)+1 complies with IEC/EN 61643-11 and is certified with CE/TUV.

    6. Does it include a working status indicator?

    Yes. A visual status window indicates protection availability.

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    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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