![]() In a normal relay when the coil is energized, the contacts are instantly closed, allowing that current to pass through. So, let's talk about some of the most common types of time delay relays and where we might find them being used. This additional functionality allows us to control the actual on/off function of the contacts, which allows us to control various different devices that we use on a daily basis. Although there are many similarities between normal relays and time delay relays, a time delay relay offers us an additional functionality. For more detailed information on the function of a relay, please see our other videos linked in the description below. So much like a normal relay, a time delay relay still relies on a coil once that coil is energized, it closes a set of contacts which allows current to pass through. Today we're going to be talking about time delay relays, some of the more commonly used time delay relays, how they work, and where we might use them. Hi I'm Josh Bloom, welcome to another video in the RSP Supply education series. "Delay On" and "Delay Off" are two of the most common types you will see. For example, they may be used in conjunction with one another to make lamps flash on and off.There are many other types of Time Delay Relays that can be applied to almost any application you can think of. Some repeat cycle timers start the off-timer first, while others begin with the on-timer. These cycles will continually repeat as long as the voltage is applied to the time delay relay. Repeat cycle timers have two controls so that cycles are independently adjustable. ![]() The timer is reset by removing the voltage and then reapplying it. The on-cycle and off-cycle times are the same lengths. When an input voltage is applied to a flasher, the contacts energize and de-energize after one another.
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