A DC ceiling fan works pretty much on the same principle as the DC motor. A DC motor uses an internal arrangement of magnets with opposing polarity. As current passes through the coil around this arrangement, a strong magnetic field is produced. This magnetic field then creates a torque that causes the motor to rotate
Schmersal heavy duty limit switch, side rotary lever with plastic roller, (2) N.C. left and (2) N.C. right contact(s), slow action, 122mm hole spacing, cast iron, (2) M25 x 1.5 cable entry