21-150 Electro-Mech

anics 1. Motors - A motor is an electrical device which converts electrical energy into mechanical energy. 2. Fans - Fans are devices that move air, whether for cooling or for ventilation. 3. Relays - A relay is an electrical device which transfers energy from one circuit to another. 4. Transformers - A transformer is an electrical device which steps up or steps down the voltage of a current. 5. Solenoids - A solenoid is an electro-magnetic device that produces a linear force. 6. Switches - Switches are electrical devices which are used to turn circuits on and off. 7. Wiring - Wiring is the process of connecting electrical components together. 8. Fuses - Fuses are electrical devices which prevent circuits from being overloaded. 9. Circuit Breakers - Circuit breakers are devices which protect electrical circuits against overloads. 10. Batteries - Batteries are devices which store electrical energy. 11. Grounding - Grounding is the process of connecting electrical systems to the earth. 12. Generators - Generators are electrical devices which convert mechanical energy into electrical energy. 13. Contactors - Contactors are electro-mechanical devices which are used to control the flow of electricity. 14. Sensors - Sensors are devices used to detect changes in the environment. 15. Connectors - Connectors are devices used to connect two or more electrical circuits together. 16. Terminals - Terminals are devices which are used to connect cables or wires to a circuit board. 17.Lighting - Lighting is the process of creating artificial light. 18.Brakes - Brakes are devices used to slow or stop the motion of a vehicle or machine. 19.Actuators - Actuators are devices which convert electrical energy into movement. 20.Power Supplies - Power supplies are devices which provide electrical power to circuits. 21.Control Systems - Control systems are used to regulate the operation of machines and processes.