DIY Frequently Asked Questions / Range and Dryer Cords')">
Range and dryer cords are free-end types, commonly called “pigtails,” attached directly to the appliance. Free ends are fitted with cable terminals that connect to screw terminals of the appliance to assure positive connections. A metal clamp attached to the cable serves as a strain relief at the point where the cable enters an appliance and a cord protector.
Heavy-duty attachment plugs for ranges and dryers are much larger than standard attachment plugs. Most are “L” shaped with a power cord feeding out the side of the plug.
Sizes range from 30 to 50 amps for dryers and ranges. The different amperage attachment plugs are not interchangeable because of a difference in their configuration.
A recent change in the National Electrical Code requires new range and dryer receptacle installations to be 3-pole, 4-wire grounding receptacles. The neutral (grounded circuit conductor) can no longer be used to ground the frames of electrical ranges and dryers.