What does NOPN stand for?
NOPN stands for "Normally Open"
How to abbreviate "Normally Open"?
"Normally Open" can be abbreviated as NOPN
What is the meaning of NOPN abbreviation?
The meaning of NOPN abbreviation is "Normally Open"
What does NOPN mean?
NOPN as abbreviation means "Normally Open"
