A contactor is an essential electrical component used in control circuits, playing a crucial role in turning on and off high-voltage equipment like motors, lighting, and other industrial machinery. In ...

Contactors control current by conducting it through metal contacts that make or break electrical circuits. When combined with an overload relay, a contactor becomes a motor starter. Working with ...

Remember that any and all other devices or control circuits and status indicators may be unaffected and remain energized. This article appeared in the May 2005 issue of Occupational Health & Safety.

These relays control and interlock starters, contactors, and other devices. Relay contacts are also used to open and close circuits to other relays and pilot devices.