Flights to St. Thomas and St. John. Enjoy a magnificent trip to St. Thomas and St. John, two islands that promise to provide a seaside paradise for you to revel in throughout your vacation.
A Relay Rack is a 2-post aluminum or steel structure with either EIA standard (round) mounting holes or universal (square) mounting holes. Relay Racks are also known as 2-Post Racks or Open Bay Racks. The vertical holes spacing on Relay Racks are standardized for mounting Telco, or computer / network equipment.
The Purpose of an Electrical Relay. An electrical relay device refers to a switch that is electrically operated. Relays are used to control the direct output supplied by circuits, and are used in numerous industrial applications. Relays rely on an electromagnet, which pulls the switch mechanism, or lever, moving it to the on or off position based on the level of electromagnetic energy received.