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Can you install a SDSA1175, SDSA3650, QO21175SB or HOM2175SB TVSS unit in a Mini Power Zone MPZ type Transformer?

Issue:
Transient Voltage Surge Suppression products in Mini Power Zone Transformers (MPZ)

Product Line:
LV Transformers

Environment:
Applies to Mini Power Zone (MPZ) Transformer products from SquareD/Schneider Electric

Cause:
The application of a Mini Power Zone (MPZ) Transformer and specification of TVSS Transient Voltage Surge Suppression

Resolution:

No. The Mini Powerzone is not UL listed for the installation of any surge/TVSS unit inside the enclosure or in the loadcenter section.   However, TVSS Transient Voltage Surge Suppression may be connected external to the MPZ enclosure
 

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