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Standard volt receptacles typically come in two amperage ratings: amp and amp. They look similar, but on a amp receptacle, one of the vertical slots has a "T" shape. This is so that the special plugs on some appliances that need more power can be plugged into them. Standard cords and appliances can also be plugged into amp outlets. When replacing a receptacle, buy one that looks exactly like the old one and has the same amperage rating.
Most importantly, never install a amp receptacle on a amp circuit. In addition to the outlet rating amp or ampthe circuit wiring and the circuit's breaker are important clues to the circuit amperage.
Circuit wiring usually non-metallic NM cable, or Romex on amp circuits uses gauge wire and usually has a yellow outer sheathing. Cable for amp circuits has gauge wire and typically has white sheathing. The circuit breaker on a amp circuit must be stamped with a "20," indicating a amp rating; likewise, a amp circuit must have a breaker stamped with " Outlet receptacles can wear out over time.
The metal contacts inside the receptacle may lose their resilience and stop gripping the prongs on appliance cords. Or, the plastic casing on the receptacle may develop cracks or chips. Sometimes, the replacement can be for simple aesthetic reasons—for example, replacing old brown receptacles with white or ivory receptacles that are more pleasing on a light-colored wall. GFCI receptacles sometimes go bad over time, for no reason other than that they have perhaps been reset too many times. Replacing a GFCI outlet is really no different than replacing a standard outlet, though it is important to make sure that the wires are reattached in exactly the same way as on the old receptacle.
In fact, it is perfectly acceptable for amp receptacles to be installed on a amp circuit. Many professional electricians do this as standard practice. Why is this safe? Because a small appliance plugged into amp receptacle generally can't draw enough power to overload the gauge wires on a amp circuit. For amp kitchen circuits, for example, equipping the circuit with amp receptacles lessens the chance that several small appliances plugged in at the same time will overload the circuit. But the situation is much different if a amp receptacle is installed on a amp circuit wired with gauge wire.
Here, there is the potential to plug in a larger appliance, which can draw enough power to overload the wires. In most homes, amp receptacles are fairly rare, even on amp circuits. These receptacles are reserved for outlets where a heavy-duty appliance is likely to be used, such as space heaters or large motor-driven power tools. Tamper-resistant receptacles : The electrical code now requires that all standard outlets be fitted with tamper-resistant receptacles. This is a safety measure that prevents children from inserting objects into the slots of the receptacle and receiving a deadly shock.
While old-style receptacles without the tamper-resistant slots can still be purchased, you are well-advised to purchase and install newer receptacles that have the code-required safety de. Shut off the power to the receptacle circuit by switching off the appropriate circuit breaker in your home's main service panel breaker box. If you don't know which breaker to throw, then you'll need to shut off the main breakerwhich controls power to the entire house.
Use a non-contact voltage tester to check for power at the outlet location: Insert the probe tip of the tester into each of the receptacle's slots. The tester should indicate no voltage. Make sure your voltage tester has operating batteries and is functioning correctly by using it to test an outlet or switch you know is activated. Some testers light up when they sense current, others emit an audible sound, some do both.
Remove the center screw on the outlet faceplatethen remove the cover plate. Test for power again by inserting the probe of the voltage tester into the spaces alongside the body of the receptacle and touching all of the wires inside the electrical box, using the tester only not your hands. Remove the mounting screws holding the receptacle strap to the electrical box, and gently extract the receptacle out of the box, gripping the receptacle by the top and bottom "ears.
Examine the wire configuration. In most cases, you will see three wire colors attached to the receptacle. Black wires are "hot" wires that carry live voltage; these should be attached to the brass-colored screw terminals on the receptacle. White wires are neutral wires and are usually attached to the silver-colored screw terminals.
Bare copper wires or sometimes green insulated wires are ground wires; one of these should be attached to the green grounding screw on the receptacle. Another short grounding wire known as a pigtail may link the circuit grounding wires to a metal electrical box.
Some receptacles will have only one hot and one neutral wire attached to the receptacle, while others may have two hot wires and two white wires attached to opposite sides of the receptacle. The wiring will depend on where the receptacle is within the circuit middle-of-run vs.
In any case, your goal is to recreate the same wiring connections on the new receptacle. You may want to take a photo with your smartphone to help you remember how the receptacle is wired. Some outlets have a switched portion and an always hot portion. Be sure to examine the outlet closely and see if the center tab has been broken out on the hot brass screw side. See Item 8 below. Verify the proper amperage for the new receptacle.
If you find a dangerous contradiction in the wiring—for example, if a amp circuit breaker is feeding wires that are only gauge—it's time to call a professional, as you have a potentially dangerous situation. If the circuit breaker, circuit wires, and receptacle all are consistent, you can proceed.
Disconnect the receptacle wires. Receptacles have two methods of connecting the wires: screw terminals on the sides of the receptacle, or push-in "back-wire" slots in the back of the receptacle. Most electricians believe that the screw terminal connections are more secure, and they usually avoid making back-wire connections. If your old receptacle has back-wire connections, remove the wires by inserting a small nail or flat screwdriver into the release slot next to each wire. The wire connection should loosen and pull free of the receptacle body. If your receptacle has screw terminal connections, loosen the screws and remove the wire loops from around the screws.
If you cannot discern a color on the insulation around the wires—which is sometimes the case with old wiring—you can label them with small tabs of tape to distinguish which wires were attached to the hot screw and neutral screw. Attach the bare copper or green insulated circuit wire to the green screw terminal on the receptacle. To do this, bend a C-shaped loop at the end of the wire, loop it in a clockwise direction around the green screw terminal on the receptacle, and tighten the screw firmly. Attach the white neutral circuit wire s to the silver-colored screw terminal s on the receptacle using the same method.
NOTE: Some receptacles are deed so the straight ends of the wires are inserted into slots next to the screw terminals on the side of the receptacle. Do not connect more than one wire to a single terminal. If the old receptacle was back-wired, don't use the back-wire fittings on the new receptacle unless they are the type that can be tightened with a screw. Bend the wire into a C-shaped loop to connect to the side screw terminal. Complete the wire connections by attaching the black hot wires to the brass-colored screw terminals, using the same technique.
Although not common, your outlet receptacle may be wired so it is "split. Sometimes this is done so that different circuits can feed the top and bottom halves of the receptacle. An example: when the outlet is wired so that a wall switch controls one half of the receptacle. In this scenario, one-half of the receptacle operates normally, but the other half is activated only when the wall switch is on. In split receptacles, a brass connecting tab along the side of the receptacle is broken off, so there is no electrical pathway between the two halves.
As you are replacing a receptacle, carefully inspect these tabs. If they have been severed in the old receptacle, then make sure you break off the tab on the new receptacle before installing it. Replacing a GFCI receptacle is not difficult if you've paid attention to how the wires were connected to the old receptacle. It's important to know that a middle-of-the-run GFCI receptacle has two pairs of hot and neutral wires and that each pair must be connected to specific screw terminals.
The wires entering the box from the power source must be connected to the hot and neutral screw terminals marked "LINE," while the pair of wires running onward to other receptacles or fixtures must be connected to the corresponding screw terminals marked "LOAD". When replacing a GFCI receptacle, carefully review the manufacturer's wiring schematic to make sure you connect it correctly.
Tuck the wires neatly into the box as you push the receptacle into place against the box tabs. Secure the receptacle to the box with the two receptacle screws. Install the faceplate onto the new receptacle. Restore power to the circuit by switching on the circuit breaker, then test the receptacle for proper operation. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic.
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Develop and improve products. List of Partners vendors. Featured Video. Materials Replacement amp or amp receptacle. Warning Make sure your voltage tester has operating batteries and is functioning correctly by using it to test an outlet or switch you know is activated.
Tip If you cannot discern a color on the insulation around the wires—which is sometimes the case with old wiring—you can label them with small tabs of tape to distinguish which wires were attached to the hot screw and neutral screw. Show Full Article. Your Privacy Rights. To change or withdraw your consent choices for TheSpruce. At any time, you can update your settings through the "EU Privacy" link at the bottom of any. These choices will be aled globally to our partners and will not affect browsing data. We and our partners process data to: Actively scan device characteristics for identification.
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Wiring Diagrams for Receptacle Outlets