If you have any additional questions, just let me know and I’ll be glad to answer them for you. This also explains and illustrates both 3 and 4 wire electric dryer circuits.ĥ) See my diagram shown below: This is what you need: The bare copper ground will land on either the neutral bus bar or onto a separate equipment grounding bar inside the electrical panel.ģ) Whoever installed the previous 10/2 Romex dryer circuit was wrong.Ĥ) Refer to the following link. The white will land on the neutral bus bar inside the main electrical panel. The black and the red will provide the 240 volts and will land on the 30 amp double pole breaker. Thus there is no neutral wire available.Ī 10/3 Romex cable contains 1 black, 1 red, 1 white and 1 bare ground.Ģ) You need a newly installed 10/3 NM Romex cable which will contain 4 wires.ie.1 black, 1 red, 1 white and 1 bare copper ground. The white and the black are being used as the 2 hots. The dryer circuit requires a continuous white neutral wire originating from the electrical panel neutral bus bar all the way to the 4 prong dryer receptacle.Īn existing 10/2 Romex cable originating from the panel does not contain the required white neutral wire since the white is being used as a hot conductor landing on the double pole breaker.Ī 10/2 Romex cable contains 1 black, 1 white and 1 bare copper. The neutral conductor on an "SE" cable is also stranded and not a solid wire. "SE" cable is the only cable allowed within the National Electrical Code to have a bare wire as the neutral. You also need a new 4 slot receptacle, a NEMA rated 14-30R receptacle.Ĥ) Many dryer circuits installed prior to 1996 did not contain a ground wire and some cables used prior to 1996 were "Service Entrance" cable. Yes, an electric dryer utilizes a 30 amp double pole breaker and 10 AWG copper wires. Using the bare copper ground as a neutral presents a potential fire hazard.ģ) I hate to be the bearer of bad news, but you need a new 4 wire circuit installed comprised of 2 hots, 1 neutral and 1 equipment ground. The neutral wire is just as hot as the insulated black wire and also needs to be insulated. As I previously mentioned, all electric dryers whether 3 or 4 prong receptacles require a neutral conductor for the 120 volt portion. The bare copper cannot be used as a neutral. Who ever installed the NM Romex cable for an electric dryer did not know what they were doing. Jacket Color: White Conductor Gauge: 14 Gauge: 14 Features: Heat Resistant,Jacketed Commercial/Residential: Residential Max Amps: 15 Jacketed: Yes Wet Location Use: Dry Grounded: Grounded Returnable: 30-Day Stranded or Solid: Solid Conductor Material: Copper Wire Cut Type: Pre-Cut Length Direct Burial: No Electrical Product Type: Indoor Residential Electrical Wire Cable/Wire Type: NM-B Number of Conductors: 3 Indoor/Outdoor: Indoor Certifications and Listings: UL Listed Product Height (in.): 3.875 Product Width (in.): 10 Total Wire Length (ft.1) Since the cable is labeled as "NM", you have non-metallic cable installed, better known as Romex.Ģ) If the Romex cable only contains 1 black, 1 white and 1 bare copper ground, it is a code violation to use that on a 120/240 volt electric dryer circuit. May be run in air voids of masonry block or tile walls not subject to excessive moisture and dampness. SlikQuik jacket allows for 50% reduction in pulling force for easier installation. 14/3 Solid Romex SIMpull CU NM-B W/G Wire #14 AWG residential wiring for outlets, switches and other loads Copper (CU) Conductors 14 gauge has White color-coded jacket for size identification Wire residential indoor branch circuits for outlets, switches and other loads with Southwire Romex SIMpull Type NM-B Cable. 14/3 Solid Romex SIMpull CU NM-B W/G Wire.
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