|A major difference between AC and DC fans are its connectors. AC fans either have a terminal connector or two wire cords while DC fans have no more than two wire connectors.|
AC Terminal Connectors
Terminal connectors are two metal prongs that protrude from the side of a fan. Terminals tend to be more convenient due not only its reduced need for soldering but also its versatility in its ability to switch between various fan cords.
Wire Cord: Wire cords convert a fan with terminal pins into wire connectors. When a fan needs to be replaced, simply remove the fan from the wire cord and replace it. This eliminates the need to solder replacement fans.
Power Plug Cord: A power plug cord allows a terminal connector fan to be powered through an electrical outlet.
AC Wire Connectors
|Wire connectors, or leads, are two wires sticking out of the fan. Wire cords can be soldered onto a power source or a power cord. Soldering must take place every time a fan needs to be replaced.|
|DC connectors come with 2-4 wires and in different colors. The red wire needs a positive voltage while the black wire needs a negative voltage. The third or fourth wire, which comes in either yellow or black, help control special functions of the fan like PWM.|