Single Pole Single Throw Switch. This means it has one input terminal and two output terminals. Sp switches control only one electrical circuit.
When the switch is connected one way for circuits a and b the lamp and led will both be on. Sp and dp refer to single pole and double pole st and dt refer to single throw and double throw. A simple on off switch.
A single pole double throw switch can serve a variety of functions in a circuit.
Keadic 10 pieces single pole single throw switch for physics laboratory school electronic experimenting ideal for demos teaching basic principles of electricity how a simple circuit works. You can see above how a double pole single throw switch can be used to put a circuit in any of 1 of 2 modes. Kraus naimer 4 pole switch 16a 690vac type kf16 t3 04 e front mounting ip 65. Spst simply mean single pole single throw.
