In the most basic terms, a relay is a remotely operated switch designed to isolate voltage and a contactor is a remotely operated switch designed to switch power. In everyday applications there is cross over and no clearly defined difference between a relay and a contactor. Sensata | Gigavac High Voltage Relays and Contactors have different design characteristics but both have the advantage of being sealed providing a safe and predictable switching environment.

Learn more about relays and contactors in this brief flyer.