Technical FAQs

Ask a Question

ION 7650 current input overload for under 1 second

Issue
Overload current for the meter's current inputs is needed for less than the 1 second specified in the installation guide.

Product Line
ION 7650, ION7550

Environment
Meter specifications

Cause
Additional specifications are needed for less than 1 second.

Resolution
The installation guide has a overload specification of 500 Amps RMS for 1 second, non-recurring.  There is an additional specification of 400 Amps RMS over 0.5 seconds (5000ms) as per IEC 62053-22. 

Even if the overload duration is less than 1 second, refrain from exceeding the 500A.
 
Was this helpful?
What can we do to improve the information ?