What does PEN stand for?
PEN stands for "Protective Earth and Neutral"
How to abbreviate "Protective Earth and Neutral"?
"Protective Earth and Neutral" can be abbreviated as PEN
What is the meaning of PEN abbreviation?
The meaning of PEN abbreviation is "Protective Earth and Neutral"
What does PEN mean?
PEN as abbreviation means "Protective Earth and Neutral"
