Relay Tech Tips

Relays come in all sizes and shapes!   DLI builds the popular IoT Relay and the DIN Relay 4, as well as several types of Ethernet controlled power relays.

For wiring and usage examples on the IoT relay, visit this page.

What's a relay?

Wikipedia answers this well... 

This Omron tutorial is a good next step.

Relay Construction, Wiring and Use

Thanks to Nexem for this useful guide to relay selection, wiring, and applications. If you only read one app note, make it this one.

Panasonic also offers an excellent relay application guide.

Here is an automotive / low voltage style applications guide with examples of connecting motors, heaters, lamps, etc.

If you plan to switch high currents, have a glance at this article on relay contact protection.
 

To support your project, we carry a few DIN accessories like the JQX-38 contactor here. You can also find a wide range of relays and contactors at digikey.