Lever Type Limit Switches: Lever type limit switches are mechanical devices used to control the operation of moving equipment by changing the state of electrical contacts. These switches are activated by a cam mechanism that moves with the equipment.

1. Lever and Cam Mechanism:
• The primary feature of a lever-type limit switch is its lever arm, which extends from the switch housing. The lever is connected to a cam mechanism that is influenced by the movement of the equipment. As the equipment moves, the cam attached to it rotates and interacts with the lever of the limit switch.
2. Square Shaft and Rotating Cams:
• The cams are fixed onto a square shaft inside the limit switch. This shaft rotates in response to the movement of the equipment. The rotation of the cams is what ultimately actuates the lever. Depending on the design, the cams can have different shapes and profiles to control various types of contact changes.
3. Contact Elements:
• The limit switch features multiple contact elements (normally open (NO) and/or normally closed (NC) contacts) that are activated by the rotation of the cams. When the cam rotates, it moves the lever which, in turn, changes the state of these electrical contacts. This action can turn the equipment on or off, or perform other control functions.
4. Contact Ratings:
• The limit switches are designed to handle electrical loads with a rating of 40 amps at 500 volts AC. This means they can control substantial electrical currents and voltages, making them suitable for various industrial applications.

1. Activation:
• When the equipment moves, the cam rotates and pushes or pulls the lever of the limit switch. This movement causes the internal contacts to change state—either closing an open circuit or opening a closed circuit.
2. Control Changes:
• The contact changes control the electrical supply to the equipment`s motor or other components. This can stop the equipment, start it, or trigger other actions depending on the specific setup of the limit switch.
3. Fixed and Adjustable Cams:
• The cams can be fixed in place or adjusted to change the position at which the lever operates. This adjustability allows for precise control over the switching points of the equipment.

• Moving Equipment Control: Lever type limit switches are commonly used in various industrial settings where precise control of moving equipment is required. Examples include conveyors, hoists, elevators, and other machinery where reliable and adjustable switching is necessary.