4HS148-118

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Snap Action, Limit Switches

A 4HS148-118 is a snap action, limit switch, designed for important machine control applications. The switch is based on a precision-crafted high force frame, allowing for a high operational life even in the toughest environments. All contact blocks and components are meticulously tested for optimum performance.

Application Field

The 4HS148-118 is suitable for a large range of applications, including pharmaceutical and medical equipment, HVAC systems, material handling, and food and beverage equipment. It’s also suitable for general industrial use, such as controlling motors, pumps, and fans.

Working Principle

The 4HS148-118 consists of a hermetically sealed snap-action switch, an actuating lever, and a snap dome. When an external force is applied to the switch, the snap dome releases, causing the switch to snap closed, or open. This snap action ensures a precise, repeatable operation and highly reliable operation.

The actuating lever is designed with a tension spring that holds the switch in the open position, unless an external force is applied. If the external force is greater than the spring force, the switch will snap closed or open. Once snapped, the lever stays in position until the external force is removed, after which the spring brings the lever back in position.

A wide range of external forces can be used to trigger the snap-action of the 4HS148-118 switch. This includes magnetic fields, humidity, optical signals, and temperature. This makes the 4HS148-118 switch suitable for both manual and automated operation.

Conclusion

In summary, the 4HS148-118 is a reliable and precise snap action, limit switch, designed and tested according to the toughest environmental conditions. With its wide range of applications, a variety of external forces can be used to trigger its snap-action, making it suitable for both manual and automated operation.

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