Before revision: Schematic for an electromechanical relay showing a coil, four pair of normally open and one pair of normally closed contacts An electrical contact is an electrical circuit component found in electrical switches, relays, connectors and circuit breakers.Relay Basics; Omron.
After revision: An electromagnetic relay with a pair of contacts|right An electrical contact is an electrical circuit component found in electrical switches, relays, connectors and circuit breakers.Relay Basics; Omron.