D2LS-21

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D2LS-21 series is one of the most popular snap action, limit switches, which are powered by an actuator and a roller plunger. The limit switch has two contacts, usually in the form of a pair of normally open and normally closed contacts. The actuator is connected to an external power source, usually through a connecting wire, to the limit switch. When the power source is turned on, the actuator will push the roller plunger and move the operating lever, which in turn causes the contacts to open or close.

The working principle of the D2LS-21 series is mainly based on thermal energy which is generated by the current passing through the switch contacts. The thermal energy triggers the contact opening and closing mechanism. Since the contacts are only affected by the thermal energy, the limit switch will continue to work even when the power is turned off. Thus, the D2LS-21 series is particularly suitable for applications where the power is interrupted for long periods of time, such as in the automotive, textile and printing industries.

The D2LS-21 series can be used in a wide range of applications, and is one of the most popular switches used in the industrial setting. It can be used as part of an automated system where the switch will trigger a particular action when the power is applied. For instance, it can be used to start and stop machines, or to control security systems. It can also be used to indicate whether a system has reached a certain temperature or pressure level, as it is able to detect any changes in temperature and pressure very quickly.

In addition, the D2LS-21 series can be used in emergency situations, where it can act as an override switch to stop machines. This is especially useful in production situations to prevent machines from malfunctioning. The limit switch can also be used to detect faulty wiring, short circuits and other problems, so that corrective measures can be taken before any damage is done.

In conclusion, the D2LS-21 series is an ideal, robust and reliable limit switch for a wide range of applications. It is easy to install and maintain, and can detect any changes in temperature and pressure very quickly. Therefore, it is the perfect solution for industries where reliable and accurate measurement is required.

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