How to Wire an Electric Motor to a Single Pole Switch

Electric motors are used in many applications today. From the small motors used in audiocassette tape decks to the large electric motors used in trains, we see evidence of this fact daily.

However, without a means of controlling whether a motor is on or off, it would be difficult or dangerous to use an electric motor. Therefore, installing a switch, such as a "single pole, single throw" switch, is necessary for the proper operation of an electric motor.

Step 1

Cut a length of wire, and strip each end of the wire of 1/2-inch of insulation. Attach one end of this wire to the positive terminal on the power supply. Attach the other end to one of the terminals on the switch. Solder the wire to the terminal on the switch.

Step 2

Cut a second length of wire, and strip each end of this wire of 1/2-inch of insulation. Attach one end of this wire to the negative terminal on the power supply. Attach the other end of this wire to the negative terminal on the motor, and solder the wire to the terminal.

Step 3

If the DC motor has electrical leads (wires already connected to the motor), splice the wire leading from the power supply to the negative electrical lead.

Step 4

Cut a third length of wire, and strip each end of this wire of 1/2-inch of insulation. Attach one end of this wire to the unconnected terminal on the switch. Solder the wire to this terminal. Connect the other end of this wire to the positive terminal on the DC motor, and solder the wire to this terminal. If the motor has electrical leads, splice the wire leading from the switch to the positive lead.

Step 5

To operate the electrical motor, close the switch (or move switch to the "On" position). To turn the motor off, open the switch (or move the switch to the "Off" position).