111SM601-H4

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Snap action limit switches are designed to physically activate and deactivate a designated circuit when a threshold is reached, such as the opening and closing of a door. 111SM601-H4 is a popular model of snap action limit switch developed by our company. It has a versatile application field and reliable working principle.

Application Field

The 111SM601-H4 model is especially useful in residential and commercial door systems that require additional security. It is specifically designed for applications where the switch needs to reliably detect either the opening or closing of a door. The switch is equipped with a roller tip and a torsion spring that enable reliable and precision operation, even when the door is subjected to shock or vibration.

The 111SM601-H4 model is also suitable for any applications where an activated state and a deactivated state must be accurately detected, such as industrial and robotic automation systems, or heating and cooling systems. It also works well in any environment that is exposed to dirt, dust, and other debris that can potentially interfere with the switch’s performance.

Working Principle

The 111SM601-H4 model contains a set of internal mechanical parts that work together to accurately detect an open or closed state. The mechanism consists of a roller tip, which sits in the center of the switch, a torsion spring, a housing, and contact blocks. The switch is activated when the roller tip comes in contact with an external object and is pulled towards the housing. This causes a force to be exerted on the torsion spring, which then pushes the contact blocks together, activating the circuit.

The same principle applies when the switch is deactivated, only in reverse. The external object causing the roller tip to move away from the housing exerts a force on the torsion spring, which causes the contacts to separate and deactivates the circuit.

The 111SM601-H4 model is designed to be durable and reliable. The torsion spring design makes it highly resistant to shock and vibration, while the contacts ensure reliable activation and deactivation even when exposed to dirt, dust, and other debris.

In conclusion, the 111SM601-H4 model of snap action limit switch is an ideal choice for applications where a reliable and accurate open/close switch is needed. Its versatile application field and reliable working principle make it a popular choice for a wide variety of projects.

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