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Is the QO2175SB UL Listed as a Transient Voltage Surge Suppressor or as a Secondary Surge Arrestor?

The current design of QO2175SB is UL Listed as a Transient Voltage Surge Suppressor, per UL 1449. It is also UL Listed as a Secondary Surge Arrestor, per ANSI/IEEE C62.11. It is marked for the Secondary Surge Arrestor application only.


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