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 ...

When a switch closes, the contacts do not close instantly and finally. The contacts close, then bounce open, and this cycle repeats for a period, depending on the switch-manufacturing technology. The ...

As electronics engineer I have a mental collection of circuits that I’ve gathered over the years, much like a mechanic collects specialized tools as they work. All engineers do this and the tools in ...

There are a wide range of applications for light sensitive switches: lighting, entrance door, automatic staircase, automatic opening of doors to the action of a ray of light, alarm systems, etc… Many ...

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 ...

Archaic light switches might as well be from the stone age. All they do is turn a light on and off. They can't dim lighting gently or remember the brightness level you prefer. Outdated switches don't ...