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1500V 3P T2 Surge protection device for air conditioner | LKX-PV
Type 2 DC Surge Protection
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1500V 3P T2 Surge protection device for air conditioner | LKX-PV

The Type 2 SPD Surge Protective Device 20–40kA 1500V DC 3-Pole (LKX-PV) is engineered for utility-scale photovoltaic and high-voltage DC power systems, providing reliable Class II protection against transient overvoltage, switching surges, and induced lightning currents. Using high-energy MOV modules, thermal disconnector protection, and fast-response circuitry, it ensures stable long-term operation for large PV arrays, combiner boxes, central/string inverters, DC distribution cabinets, battery-storage systems, and 1500V DC solar plants.

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    product details
    01

    Model Meaning

    p1j36
    02

    Product principle and working conditions

    1.Meets ClassⅡ (8/20μs) SPD tests
    2. Based on zinc oxide technology
    3. Using 34S MOV, the maximum will be up to 8/20μs 40kA
    4. No power frequency continuous flow
    5.The operating environment temperature is -40°C~+80°C
    6. Remote signaling function is optional.
    7. When product falls, the green window turns to red and remote signaling provides remote alarm function

    03

    Technical parameter details

    Technical Data
    POLE 3P
    SPD Type Type 2/ClassⅡ 
    Technology MOV/MOV+GDT
    Protection mode(s) DC+PE.DC
    Max.continuous operating voltage (D.c.)                     [Ucpv] 800V 1000V 1200V 1500V
    Nominal discharge current(8/20μs)                             [In] 20kA
    Max.discharge current (8/20μs)                                  [lmax] 40kA
    Protection level                                                           [Up] ≤3.6kV ≤4.0kV ≤4.5kV ≤5.2kV
    Response time                                                            [tA] ≤25ns
    Admissible short-circuit current                                   [lsccr] 25kA
    Max, backup fuse 125AgL/Gg
    04

    Mechanical Data

    Mechanical Data
    Current AC system
    SPD configuration Single/Three phase
    Pluggable Available
    Mounting 35mm DlN rail
    Housing material Thermoplastic,UL 94 V-O
    Operating temperature -40℃...+80℃
    Protection rating IP20
    Remote Signaling Green/Red
    Wiring for remote signaling Optional
    Max.Voltage/Current for remote signaling Max 1.5mm solid/flexible
    Standards compliance 250V/0.1A;125V/0.2A;75V/0.5A
    Certification CE,CB,RoHS,TUV
    04

    Outer appearance and installation dimensions

    4n4m5439
    05

    Installation considerations

    1.Before installation, ensure power is disconnected. Operating while energized is strictly prohibited.
    2.It is recommended to install a fuse or circuit breaker in series at the front end of the surge protection module.
    3.Follow the installation diagram for connection during installation. DC+ is the positive pole, DC- is the negative pole, and PE is the ground wire. Avoid incorrect connections. After installation, close the circuit breaker (or fuse) switch and check if the operation status is normal.
    4.After installation, insert the module into place and verify if the surge protection module is functioning correctly.
    5.During use, regularly inspect the surge protection module and check the status of the fault display window. If the fault display window turns red or if the remote signaling terminal outputs an alarm signal, it indicates a malfunction of the surge protection module, which should be promptly repaired or replaced.
    6.Parallel-connected power surge protection modules should be installed in parallel. The connection wires must be secure, reliable, short, thick, and straight.