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how can i connect 4 pin tact switch to the circuit

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safo2t

New Member
hi

i need to know how can i connect 4 pin tact switch to the circuit

i dont know which pin should be connected


how i know the orientation and how to test it with Digital multimeter

i dont know the manufacture but i have a switch as this picture



at the bottom of the switch its written 3H ..4B in another one



on one of the switch sides there is a tiny mark as short line
 

Reloadron

Well-Known Member
Most Helpful Member
Each side is a pair of contacts common to each other. Example looking at the picture the two pins closest the front are likely common to each other. I should point out that in some cases two pins are NC (No Connection) and just used for mounting security). Beyond that there isn't much to know. You have a meter.

Ron
 
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MikeMl

Well-Known Member
Most Helpful Member
Are you asking "how do I use an Ohmmeter"?
 
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