Electrical switches

spikedaddy99

Well-Known Member
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Jun 11, 2008
2,579
Prentice, Wi
Boat Info
2005 500 DB
Engines
QSM-11
On my helm, I have switches that turn (for example) the windlass on or off. Pretty easy to replace. Then, I have some (like the radar) that when I push it up, it turns on but the switch itself repositions into the neutral position. Then to turn off, I push it "down" and power goes off and switch resets into neutral position. I think its called a momentary switch. Would that be called an ON/OFF/ON momentary switch?
Why the difference? Why not just on or off? Mike
 
I think it's actually (ON)/OFF/(ON) with the parentheses indicating a momentary action.
Momentary switches are used based on the electronics they control... in the case of your radar, the electronics require the momentary action. Your radar is probably in sleep mode and the momentary action wakes it up.
 
A horn is another example of where a momentary is used. You only want the action for the period the switch is held. A latching which is ON or OFF until you physically change the switch position, light light or a blower.
 

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