Single pole means that it can only control a single circuit, and single throw means that there are only two positions the switch can be in (one on, and one off state). Mechanical relays do not ...

But there’s still plenty of fun to be had in using those mechanical means today, as [Manuel] did recently with his relay computer. This post is a walk through some circuits that used those ...

This increase is then detected by a threshold circuit, which opens the relay contacts. A melting alloy (or eutectic) overload relay consists of a heater coil, a eutectic alloy, and a mechanical ...

Electromechanical relays are electrically operated switches used to isolate circuits or batteries, detect faults on transmission and distribution lines, and control a high powered circuit using a low ...