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The 820 series Time Delay Relay is DIN-rail mountable products offering 10different timing functions, 2 status LEDs, ultra-wide timing range and universalvoltage input. Time delay is defined as the controlled period between thefunctioning of two events. A time delay relay is a combination of anelectromechanical output relay and a control circuit. The control circuit iscomprised of solid state components and timing circuits that control operationof the relay and timing range. Typical time delay functions include ON-delay,repeat cycle, interval, OFF-Delay, re-triggerable one shot, repeat cycle, pulsegenerator, ON/OFF delay and memory latch. Time delay relay has a broad choice oftiming ranges from less than one second to many days. There are many choices oftiming adjustments from calibrated external knobs, DIP switches, thumbwheelswitches or recessed potentiometer. The output contacts on the electromechanicaloutput relay are direct wired to the output terminals.Input indication green LED lightOutput indication red LED lightFine time setting ultimate control in accuracyTime setting select between 10 different time scalesInput terminals accepts up to a 14AWG wire