Combination rating &1, primary vltge &2, secondary vltge &3 not permitted

What causes this issue?

You have entered an impermissible combination of rating (&V1&), primary
voltage (&V2&), and secondary voltage (&V3&).

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Use the input help (F4) to selected a valid combination. auszuwShlen.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.