- SPST(single pole single throw)
- SPDT(single pole double throw)
- DPST(double pole,single throw)
- DPDT(double pole,double throw)
SPST(single pole single throw):The spst is a basic ON/OFF switch,that is used to connect or break the connection between two terminals.This type of switch has one i/p and one o/p.This type of switch circuit controls one wire and make one connection.
SPDT(single pole double Throw):The SPDT switch is a three terminal switch,one terminal is used as i/p and remaining two terminals are used as outputs.
DPST(double pole,single throw):The DPST switch consists of two poles that means it includes two identical switches located on side by side.This switch is operated by one single toggle,which means that two discrete circuits are controlled at a time through one push.
This switch is used to turn two circuits ON/OFF and it consists of four terminals namely two inputs and two o/ps.
DPDT (double pole double throw):This switch is equal to two SPDT switches,it means two separate circuits,connecting two inputs of each circuit to one of two o/ps.
when it is in ON-ON mode or ON-OFF-ON mode they work like two discrete SPDT switches worked by the similar actuator.
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