While solid state devices usually have longer operating lives than electromechanical types, they are also more expensive. A limit switch may be normally open (NO) or normally closed (NC) in its normal ...

While solid state devices usually have longer operating lives than electromechanical types, they are also more expensive. A limit switch may be normally open (NO) or normally closed (NC) in its normal ...

We’re used to thinking of limit switches as a mechanical device that cuts the motor connection before physical damage can occur. [Anthony] decided to try a different route with this project.