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What is the difference between TVSS and SPD?

Product Line:
Surge Protective Devices (SPDs)

Resolution:
There is no difference. The change in terminology from TVSS (transient voltage surge suppression) to SPD (surge protective device) was mandated by the 3rd Edition of the UL 1449 standard.

Released for:Schneider Electric Canada

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Range:
QO2175SB Surgebreaker Surge Protective Device (SPD)
HOM250PSPD
Homeline HOM2175SB Surgebreaker Surge Protective Device...
Square D QO250PSPD QO Plug-on Neutral SPD Whole Home Surge...

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Explore more
Range:
QO2175SB Surgebreaker Surge Protective Device (SPD)
HOM250PSPD
Homeline HOM2175SB Surgebreaker Surge Protective Device...
Square D QO250PSPD QO Plug-on Neutral SPD Whole Home Surge...