KRPSA21RE

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Time Delay Relays (TDRs) are used by industry to complete control and indication of activities within a predetermined cycle or period of time. This type of electronic relay uses a time delay to control the opening of a switch or activate another electrical, mechanical, hydraulic, or other component once a preset period of time has been reached. In the industrial field, time delay relays are often used to control time-dependent functions, such as the starting and stopping of motors, activation and deactivation of alarms, and control of heating elements. The KRPSA21RE TDR is one of many time delay relays used by industry to ensure precise control of activities that need to be completed within a specified amount of time.

The KRPSA21RE TDR is a 4-o-1 relay that provides for the control of one contact and four different time ranges. It utilizes a five-digit LED display for time setting that can be adjusted from 0.01 to 9999 seconds. Its pre-wired terminal offers a wide range of control and timing settings that allow it to be used for a variety of applications, including the control of safety equipment, the operation of heating elements, and the operation of motor systems. In addition, it has an audible alarm that signals when the time delay has been exceeded and a fault indicator that shows when the relay has experienced a power or contact failure.

The KRPSA21RE TDR works on the principle of the time delay relay. When a voltage is applied to the KRPSA21RE TDR, its relay coil is energized and its contact points close. Once a preset period of time has elapsed, the time set by the user, the relay coil is de-energized and its contact points open, breaking the circuit. This ensures that any power supplied to the device is disconnected once the time delay has elapsed.

The KRPSA21RE TDR also features a normally open (N/O) contact and a normally closed (N/C) contact. The N/O contact is used to activate a safety feature, while the N/C contact provides an indication of whether the time delay has been exceeded or not. The KRPSA21RE TDR can also be used to control a variety of other systems, such as heating systems, motor systems, and alarm systems.

The KRPSA21RE TDR is a versatile time delay relay that provides industry with the flexibility and accuracy it needs to complete control and indication of activities within a predetermined cycle or period of time. Its adjustable settings, combined with its fault indicator and audible alarm, make it an ideal solution for controlling time-dependent functions, such as the activation and deactivation of alarms, the control of safety equipment, and the control of heating elements.

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