311SM68-H4

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Snap action, limit switches are lever or plunger operated electrical contacts used for change of state indication, position indication and other control functions. Broken in two categories of power-operated and non-power-operated, there are various designs of limit switches used in different applications. The 311SM68-H4 is one type of limit switch with a special application field and working principle.

The 311SM68-H4 is a 3-pole double break switch used for controlling AC-1 et in motor circuits. It is specifically designed for motor starting and stopping, featuring a 15amp Rating, 240VAC, with an intentionally activated mechanical link for motor protection at start/stop cycles. This limit switch boasts double break contacts, with a quick-make, quick-break action and a voltage rating of 250VAC.

This limit switch is primarily used in air-condition other industrial machines. With a compact and robust mechanical construction, they are a reliable, economical solution, often found in the residential and commercial environment. The various models can be mounted directly on the drive unit, greatly simplifying the wiring and featuring industrial grade construction. This limit switch can be easily installed on the motor, moving it to its correct position, increasing the safety of startup andshutdown procedures.

The 311SM68-H4 works by responding to a physical signal when a user presses the button. When pressure is applied on the button, the micro-switch on the inside of the switch will make contact in order to turn the device on. When the pressure is released, the switch breaks contact and the device turns off. Since it provides an audio-visual signal, the user can be sure that the device is on or off.

The 311SM68-H4 uses high quality terminals for wiring, which ensures a secure connection, due to its non-flammable casing. This further offers protection from shocks and corrosion, as well as from extreme temperatures. This limit switch is robust and reliable, with the only external moving part being the plunger and a secured cover.

Overall, the 311SM68-H4 is a sophisticated yet practical limit switch which offers maximum flexibility, reliability, and durability. It is easy to install and can provide secure connections and reliable control. This limit switch is often selected due to its performance, ease of installation, and affordability.

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