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Can a SPD configured for a 480Y/277 be used on a 480V Delta application?

Product Line:
Surge Protective Devices (SPDs)

Environment:
Application

Cause:
Clarification

Resolution:
No. The MOVs will prematurely reach end of life instantly due to being exposed to an overvoltage condition. The SPD maximum continuous operating voltage (MCOV) from phase to ground is 320V. The voltage from phase to ground on a Delta system is 480V which exceeds the MCOV of a 480Y/277 SPD. 
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