Sp and dp refer to single pole and double pole st and dt refer to single throw and double throw.
Spdt door contact.
Dp switches control two independent circuits and act like two identical switches that are mechanically linked.
What do spst spdt dpst and dpdt mean.
Sp switches control only one electrical circuit.
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Diameter 1 2 in or 1 in.
The single pole double throw spdt relay is quite useful in certain applications because of its internal configuration.
Recessed steel door magnetic contact with wire leads 1 in.
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The unique housing design features a rugged unibody construction with flexible ribbed.
So basically you can see the spdt relay as a way of switching between 2 circuits.
Pole refers to the number of circuits controlled by the switch.
Gap size closed loop spdt dpdt varies with model.
It has one common terminal and 2 contacts in 2 different configurations.
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1076 n 1 spdt steel door contact white new 2 from 60 37 free shipping.
The contacts are designed specifically for use in the steel doors commonly found in commercial building applica tions.
One can be normally closed and the other one is opened or it can be normally open and the other one closed.
Dps 11 2 sdc door status switch electromechanical ball dpdt 5 amp mc 4m sdc door status switch magnetic contact vandal resistant mortise face plate spdt 50 ma mc 7 sdc door status switch magnetic contact biased high security press fit spdt 50 ma 1 dia.