In this world of solid-state electronics, sometimes it is helpful to have the audible electro-mechanical "clunk” of a relay to let you know things are working properly. I needed to increase the current capacity of a small switch and this fit the bill perfectly. These are exact replicas of the Potter-Brumfield or Guardian relays of the past but with a few nice additions. I like the red LED visible from the top of the relay that lights when the relay is energized. The socket has a DIN rail mount…