These devices are still available and are typically used in applications with very simple timing needs.īut we can get more advanced Timing Relays with different functions and multiple timing ranges. Traditionally, timing relays were available only as single-function, single-time-range devices.
Timing relays can be applied to almost any application, these are available as plug-in devices, base-mounted devices, circuit boards and even as DIN rail mounted controls. Once this time expires, it automatically cuts the power to the light. So once the light switch is pressed, the time delay relay keeps the light on for a certain amount of time. We don’t want the light to stay on constantly, we want it to automatically turn off. Perhaps in a place of work, or an apartment block. They play a vital role for targeted logic needs.Ī common example you have probably seen is in a corridor or stairwell which is infrequently used. For example to start a motor, control an electrical load, or simply automate an action. Timing Relays are used extensively in industrial applications, HVAC systems and building services to provide time-delayed switching. Delay OFF type, Delay ON typeīy the way we have covered the basics of mechanical relays in detail in our previous article, do check that out HERE. These can be normally open or normally closed type relays and we can control the delay time from milliseconds to hours or even days. There are two main types of basic timing relays, the delay on type and the delay off type. When the electricity is cut on the primary side, the contacts on the secondary side will open and cut the power to the load.įor some applications we do not want an immediate response on the secondary side, we want this to occur after a certain amount of time, or only for a certain duration. In a standard normally open control relay, the contacts on the secondary side close immediately when voltage is applied to the coil on the primary side. They control an event, by energising the secondary circuit, after a certain amount of time or for a certain amount of time, some can even do both. Time delay relays are simply control relays with a time delay function built in. To find out more click HERE What is a Time Delay Relay? Time Delay Relay Take the time to review their time delay relay portfolio along with suitable relay bases and accessories.
They offer some of the best timers on the market and guarantee to offer the most capabilities in functionalities and time ranges. TELE Controls have kindly sponsored this article, and they are one of the leading manufacturers in the automation industry since 1963. Scroll to the bottom to watch the YouTube tutorial. Learn the basics of the timer delay relay and timer switches to understand the main types, how they work and where we use them.
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