12SE4-T

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Snap Action, Limit Switches

A snap action, limit switch is a switch that is designed for use when an electrical circuit needs to be broken or made when a mechanical force is applied. The switch is designed to “snap” open or closed when the predetermined force is applied, and to remain in that position until the same force is reapplied.

12SE4-T Application Field

The 12SE4-T snap action switch, with its short travel, makes it particularly suitable for clamp and lever operated mechanisms. It is ideal for applications such as pressure-activated switches, and can also be used in numerous light industrial, agricultural, and equipment switching applications.

These snap action switches are suitable for industrial and agricultural machinery, food processing equipment, motors, pumps and agricultural applications.

Working Principle

The 12SE4-T snap action switch works by means of a flexible blade or armature, which is forced into contact with the switch contacts as a result of an applied mechanical force. A raised or lowered armature position changes the contact state of the switch, and the operating force is applied to the armature either directly or via a lever or plunger.

As the force is applied, the armature will reach its mechanical travel limit, and will “snap” open or closed. The contact then remains in that state until the force is reapplied. Depending on the application, these switches may be designed to make and break contact simultaneously, or one contact may be designed to make contact before the other.

Features and Benefits

The 12SE4-T snap action switch has a number of features that make it well suited for a wide range of applications. These include:

• Highly reliable switch mechanism: The design of the switch ensures dependable switch performance, with adjustable snap action characteristics to suit the requirements of the application.
• Silver contacts: These ensure that the contact faces are highly resistant to corrosion and offer longer contact life requirements.
• Operating temperature range: The switch is rated to -10°C to +60°C.
• Threaded mounting: This makes the switch easy to install in the panel.
• Sealed construction: The switch body is weatherproof and splashproof.

Conclusion

The 12SE4-T snap action switch is a reliable and cost-effective switch solution for a wide range of applications. It is quick and easy to install, and offers reliable performance in terms of switch operation and contact life.

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