Spdt Switch Diagram. Sp switches control only one electrical circuit. Terminal 2 is the terminal which receives the power necessary so that the loads on terminals 1 and 3 can be powered.
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Switches with two pilot lights spst off on dependent independent four terminals spdt on off on of on on dependent four terminals spdt on off on or on on independent four terminals diagram h diagram j diagram k b l 2 4 36 l11 b l2 2 4 3 3 6 5 1 4 switch diagrams. Basically this circuit is same like staircase wiring circuit using two way spdt switches used to control the lighting circuit in a hallway and corridors. Hallway and corridor wiring circuit diagram using two way switches.
Four way switch circuits.
And terminal 3 can connect to any load to power any device. Pole refers to the number of circuits controlled by the switch. Key to wiring diagrams. They are mechanically coupled to control different circuits at the same.
