How Do You Wire A Double Pole Double Throw Switch?
A double pole double throw (DPDT) switch is a three-selection electrical device in which there is one “off” and two “on” positions. An application for this switch is for reversing a direct current (DC) electrical motor. The motor’s two-power leads are reversed at one of the switches screw terminals. This allows the DC power to be reversed going to the electrical motor. This action then reverses the motor’s direction. Attention must be paid to the allowable power capacity of the switch. In all cases, the switch is plainly identified on the side or rear of the switch mechanism. Identify the six screw terminals on the side or rear of the switch. There are three pairs of screws that will conduct the electrical power through the switch’s mechanism and contacts. The two terminals in the very middle are the power feed connections. The four outermost terminals conduct power to the device being controlled. Remove all electrical power from the power source. Use the wire strippers and remove ¾ of
