What does EFR stand for?
EFR stands for "Earth Fault Relay"
How to abbreviate "Earth Fault Relay"?
"Earth Fault Relay" can be abbreviated as EFR
What is the meaning of EFR abbreviation?
The meaning of EFR abbreviation is "Earth Fault Relay"
What does EFR mean?
EFR as abbreviation means "Earth Fault Relay"
