21SX14-T

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Snap action, limit switches are electromechanical devices that switch electrical signals on or off in response to an external force. They are often used in industrial applications such as automotive, transportation, and appliances. The 21SX14-T is a type of snap action limit switch specifically designed for medical equipment and environments. This type of switch is highly reliable and offers a long working life. In this article, we will discuss the 21SX14-T\'s application field and working principle.

Application Field

The 21SX14-T limit switch is especially designed for medical equipment and environments. It is often used in medical beds and scooters, as well as other medical products. The switch is designed to be resistant to water, dust, and extreme temperatures. It can withstand temperatures ranging from -20 degrees Celsius to +85 degrees Celsius. The switch is also electromagnetic interference (EMC) and electrostatic discharge (ESD) resistant, making it ideal for use in electrically-noisy environments. The 21SX14-T also has a wide range of operating forces and a tactile feel, giving it a competitive edge over other switches.

Working Principle

The 21SX14-T works by using an actuator to move a plunger within the switch body. When the actuator is moved, it causes the plunger to move in either direction. Depending on the pressure applied to the plunger, it will either open or close the switch contacts which control the circuit. When the circuit is open, no current will pass through the contacts and the circuit is off. Conversely, when the circuit is closed, current will pass through the switch contacts and the circuit will be on.The switch contacts are made of two gold-plated surfaces which rub together when the plunger moves, creating a low-resistance electrical connection. The contact surfaces are extremely thin and delicate, so it is important that the switch is properly cared for and used within its rated operating conditions. Over time, the contacts can become worn due to excessive currents or incorrect wiring. This will reduce the switch\'s lifespan and could cause the switch to fail.

The 21SX14-T snap action limit switch can provide reliability and accuracy in medical applications. Its wide range of operating forces and resistance to harsh environments ensures a long working life. The switch is easy to install and maintain, making it an ideal choice for medical equipment.

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