Limit switches

Limit switches normally contain two sets of contacts, two which are normally open (NO) and two which are normally closed (NC), this means they can be used for many applications and can easily be added to most control circuits, you can even wires these up to your Burglar alarm.

[richardjones]

Just a quick example NC would stop a machine door from over travel and the NO contacts would then start the machine for what it was designed for when the switch operates hope that makes sense

[Stevin]

Thank you for the clarification, I bought goods from Germany for a telemecanique company to Iraq, and they gave me some of these, and I don't know how to use them, and when I watched the video, I knew how to work, but for what purpose are they used?

[adrian]

What is the maximum amperage?what is the difference of ith and ie?

[fnarite]

I am not that educated about electronics. In one of your videos you mention that the linear actuator had limit switches when fully extended and fully retracted. What is the purpose of the external limit switch?

[_Ptat_]

Meh it's just a simple momentary switch, nothing special. But thanks for the video anyway