PM4HF8R-S-AC120VW

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Time Delay Relays

Time Delay Relays are electronic switches used to control electrical circuits in certain programmed time delay phases. Their primary advantage lies in their ability to control many types of circuits with pinpoint accuracy, which makes them ideal for applications in industrial, automotive, and safety systems. A common type of time delay relay is PM4HF8R-S-AC120VW, which is used for a variety of applications.

PM4HF8R-S-AC120VW Application Field and Working Principle

PM4HF8R-S-AC120VW is a multi-function time delay relay used in a variety of industrial, automotive, and safety systems. This device has an integrated electronic timer that triggers a relay when the desired time has elapsed. The device is typically used to delay the activation of a device, or to extend the activation time of an already operated device. The timer settings of the PM4HF8R-S-AC120VW are adjustable for accurate control in a range of 0.1 to 10 seconds.

The PM4HF8R-S-AC120VW is designed to accept an AC input voltage of 120 volts (50/60Hz) and outputs a potential-free signal after the programmed delay. This time delay relay is especially useful when controlling the timing of motors, heaters, lights, and other devices. It can also be used to control safety circuits as a fail-safe mechanism when power is lost or interrupted.

The PM4HF8R-S-AC120VW is easy to install and use. It is available in a modular package with a DIN rail-mounting outlet for easy installation. A built-in signal led indicates the status of relays. The relay is equipped with a selectable delay and LED indicator, and adjustable potentiometer. The device works with an adjustable time setting that can be changed for each application, and a built-in timing circuit to ensure accuracy and reliability.

The PM4HF8R-S-AC120VW can be used to provide various combinations of time delay and signal triggering. The most common application of this type of relay is to control the start-up and shut-down times of electrical circuits. It can also be used to delay the activation of a safety circuit after a certain time. By using the adjustable potentiometer, the PM4HF8R-S-AC120VW can be set to provide an exact delay time. It is suitable for controlling loads up to 1.2 A.

In addition, this time delay relay is also suitable for controlling the times of valves, fans, and pumps in combination with an external power source or a motor starter. It can also be used to control different actuating parameters such as force, temperature, pressure, and vibration or as a time delay in hydraulic applications. For example, it can be used to activate an alarm signal in case of overheat, pressure and vibration in machinery.

The PM4HF8R-S-AC120VW is a reliable and versatile time delay relay, ideal for a wide range of applications. It is simple to install and use and offers high accuracy, reliability, and adjustable timing performance. This device is designed to provide an economical solution for controlling various circuits and ensures precise control of relays and loads.

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