In the 120V circuits of homes and offices, the grounded conductor is the same as the neutral. Typically, when wiring a switch for a 120V load (e.g., a light) only one wire comes to the switch and only ...

Q. What type of circuit breaker does the Code allow to be used for switching duty of lighting circuits? A. Circuit breakers used to switch 120V or 277V fluorescent lighting circuits must be listed and ...

The circuit doesnot use a relay.Therefore, it has nomoving parts, and it is not prone to contact oxidation. It usesa TRIAC (triode alternating current)that can switch hundreds of watts. The circuit ...