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The RM4TR32 Phase Failure Relay shows to have a high threshold voltage of 480V. Can this unit be used on a 480V nominal system?

Issue:
The RM4TR32 Phase Failure Relay shows to have a high threshold voltage of 480V.  Can this unit be used on a 480V nominal system?

Product Line:
Zelio Phase Measurement Relays              

Environment:
RM4 Zelio Phase Measurement Relays

Cause:
Confirm if the RM4 relay will work for application.                                                          

Resolution:                                                                 
No. RM4TR32 will not work on 480V systems. It will always be tripped on overvoltage. 
 
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