I got this remote switch and im trying to wire it up, what do the names "NO" and "NC" mean.
2006-07-25 05:31:55 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Normally Open and Normally Closed refer to the state of the switch when unpowered and untouched.
As it sits in the box, NO is open, unconnected to the C, common terminal. And NC is connected to the C terminal.
When the relay's coil is engergized or you physically push a momentary switch with the your finger, the state changes - NO-C closes and NC-C opens.
2006-07-25 05:37:40 · answer #1 · answered by David in Kenai 6 · 4⤊ 0⤋
NO - Normally Open
NC - Normally Closed (Like the first poster stated)
This nomenclature refers to the "Shelf state, or deenergized state" of the switch. If this switch is energized, then it will go to the other state. Energize a NC switch and it will open or energize a NO switch and it will close. Commonly used in electrical circuits.
2006-07-25 12:39:45 · answer #2 · answered by Joe Clay 1 · 0⤊ 0⤋
NO means normally open
NC means normally closed
2006-07-25 12:35:26 · answer #3 · answered by Derrick C 1 · 0⤊ 0⤋