What is a Limit Switch?
In electrical engineering, a limit switch is a switch operated by the motion of a machine part or the presence of an object.
A limit switch can be used for controlling machinery as part of a control system, as a safety interlock, or as a counter enumerating objects passing a point.
Limit Switches Suppliers In South Africa
Limit Switches are available at Mouser Electronics from industry-leading manufacturers. Mouser is an authorized distributor for limit switch manufacturers such as Crouzet, Honeywell, Omron, OTTO, & Schneider Electric.
Where are limit switches used?
A limit switch can be used for controlling machinery as part of a control system, as a safety interlock, or as a counter-enumerating object passing a point.
Limit switches are used in a variety of applications and environments because of their ruggedness, ease of installation, and reliability of operation.
What causes a limit switch to fail?
If the Limit Switch is used so that the actuator is continuously pressed, it will fail quickly and reset faults may occur.
If the system moves while the cam or dog is in contact with an actuator (roller) of the Switch, the travel distance will be longer, and so the wear on the roller and roller axis will increase.
What are the most commonly used high-limit switches?
Turning the fan motor on and off is the high-limit switch’s main job. This is the role it plays in every cycle of your furnace’s normal operation.
But that’s not the only thing that the high-limit switch does. It’s also a safety device that helps prevent your furnace from overheating.
How many volts is a limit switch?
Mechanical limit switches are ideal for industrial control equipment where voltages are relatively high – normally 120 volts or higher – and current levels are high- normally.