Straight blade receptacles is the technical term for the wall socket you plug an electrical device into, so it can function at peak efficiency. A typical residence uses a 20 amp outlet, usually two receptacles per outlets. The standard straight blade plug has two blades (or prongs) and a ground plug to help prevent shocks. A 30 amp plug, which is used for more heavy-duty appliances and machinery, needs a different type of wall outlet, usually mounted as a singular receptacle. Wiring a plug is a relatively simple and straightforward procedure, but for safety purposes, installation should be done by a licensed electrician. Zoro also has a wide selection of electrical wall plates, wall switches, and locking receptacles to choose from.