An electrical contact is an electrical circuit component found in electrical switches, relays, connectors and circuit breakers. Each contact is a piece of electrically conductive material, usually metal.
Hereof, what is SPDT in a relay?
The SPDT Relay(30A) is a high quality Single Pole Double Throw Relay(SPDT).The Relay consists of a coil, 1 common terminal, 1 normally closed terminal, and one normally open terminal. When the coil of the relay is at rest (not energized), the common terminal and the normally closed terminal have continuity.
What is a DPST relay?
It is ambiguous whether the pole is normally open or normally closed. The terminology "SPNO" and "SPNC" is sometimes used to resolve the ambiguity. SPDT – Single Pole Double Throw. A common terminal connects to either of two others. Including two for the coil, such a relay has five terminals in total.
What is a single pole single throw relay?
It is ambiguous whether the contact is normally-open or normally closed. The terminology "SPNO" and "SPNC" are used to resolve the ambiguity. Single Pole Double Throw (SPDT) - A common terminal connect to either of two other. Including the two terminals for the coil, this type of relay has five terminals in total.