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ASCO Model 420 DC Surge Protective Device

300-1500VDC | 50kA/Mode

The Industry’s first DC Surge Protective Device (SPD) for use in Photovoltaic applications

ASCO Model 420 DC Surge Protective Device
  • Features

    • Does not require additional upstream fusing for SPD safety protection
    - 100kA DC Short Circuit Current Rating (SCCR)
    - Fail-Safe operation – arc breaking, slide-gate thermal disconnectors built-in
    - Avoids safety challenges and fusing shortcomings of overseas-standard SPDs
    • 1500VDC Model is UL Listed to UL 1449 Photovoltaic Standard (VZCA.E321351 & VZCA7.E321351)


    • 10 year limited warranty


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