38HM20

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Snap Action, Limit Switches are devices designed to provide physical anchoring for automated systems as well as signal switching for on/off controlled applications. One example is the 38HM20 switch, which is designed for use in harsh environments with minimal maintenance. This device functions by two actuators that move independently, one actuating and the other de-actuating, when the switch’s position is changed.

The design goal of the 38HM20 is to provide reliable, long-lasting switching performance with high immunity to contamination and minimal hard wear.

The 38HM20 utilizes an electro-mechanical switching mechanism that is driven by a pair of actuators, one of which is a snap action and the other a limit. When the snap action actuator moves, it causes a lever to move the contact between the switch’s two terminals. This action is the same regardless of whether the switch is activated or de-activated. The limit actuator is used to prevent the switch from turning past a certain point.

The 38HM20 is also equipped with an optional gold-plated contact to reduce contact resistance and provide improved contact life. The contact material used for the switch’s contacts is designed for long life and low contacting resistance. The Gold-plated contacts reduce the contact resistance and increase the life of the switch.

In addition, the 38HM20 has an operating temperature range of -25°C to 80°C, which best suits most applications. The insulation resistance of the 38HM20 is also excellent, with a range of up to 300 megaohms.

Since contact bouncing can affect the accurate switching of most snap action limit switches, the 38HM20’s unique design eliminates contact bouncing. The actuator is suspended between the two contact points, and the design minimizes any contact bouncing when the switch is activated or de-activated.

The design and operation of the 38HM20 make it ideal for different applications such as safety interlocks, printer use, surge protection, and switch control. It can be used in harsh environments such as food and beverage manufacturing, where the switch must be immune to dust and water, as well as oil and chemical contamination.

The 38HM20 snap action and limit switches provide high performance with minimal maintenance. The switches are designed for long life and reliability, making them an excellent choice for a variety of applications.

The specific data is subject to PDF, and the above content is for reference