The start-up circuit is a small piece of circuitry that is needed in almost all designs, is often taken- for-granted, and maybe because of that, is responsible for many design iterations. So what is a ...

Many single-phase motors used with refrigeration-duty, semi-hermetic and hermetic compressors require an external relay to assist in starting. How much do you know about these necessary products? An ...

Acceptable ohm reading for a good current relay. One type of starting relay used on fractional-horsepower compressors is the current relay. This type of starting relay uses the initial high inrush ...