221EN55-R

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Snap action switches, also known as limit switches, are electromechanical and mechanical devices used to detect the presence or absence of an object-- for example, when a door opens or closes. The 221EN55-R snap action switch is designed for a variety of applications and uses a reliable, robust mechanism to ensure consistent performance. In this article, we will discuss the application field and working principle of the 221EN55-R snap action switch.

The main application field of the 221EN55-R includes industrial automation and control, access control, vending machines, bank ATMs, and home appliances. It is also suitable for low current and high current applications. The 221EN55-R’s tightly sealed mechanisms, high contact current rating, and complete seals against dust and water ensure long-term reliability and durability.

The 221EN55-R features an encapsulated body for superior vibration resistance, a standard operating angle of 60°, and adjustable positive opening and closing. It also features a quick-release mechanism, allowing for easier and faster installation and removal. The 221EN55-R is available in various versions, including C and D, covering a wide range of applications. The 221EN55-R is also available in different versions, including SPDT and DPDT.

The working principle of the 221EN55-R snap action switch is based on an actuating lever assembly and a plunger located inside the body. When an external object touches the actuating lever, the plunger is forced inwards and the contacts of the switch open or close, depending on the type of switch. The 221EN55-R snap action switch is designed to offer a high level of repeatability, reliability, and precision in detecting the presence or absence of objects.

The 221EN55-R snap action switch has been designed to ensure long-term reliability and durability, even in harsh environments. Its robust, dust and water-tight housing makes it suitable for a wide variety of applications requiring reliable performance in extreme conditions. The 221EN55-R is UL listed and RoHS compliant, ensuring reliable performance and safety even in hazardous environments.

In summary, the 221EN55-R snap action switch is designed for applications requiring reliable performance in extreme conditions. It features a quick-release mechanism for easier installation and removal, a tightly sealed body for superior vibration resistance, standard operating angle of 60°, adjustable positive opening and closing, and a high contact current rating. The 221EN55-R is UL listed and RoHS compliant, ensuring reliable performance and safety even in hazardous environments.

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