{"product_id":"8-3-romex-nm-b-125-ft-black-cable-durable-40a-residential-wire","title":"8\/3 Romex NM-B 125 ft Black Cable - Durable 40A Residential Wire","description":"\u003cp\u003eIn this review of the 8\/3 Romex Type NM-B 125 ft black cable the bottom line is simple: this is a solid, no-frills choice for residential and light commercial branch circuits where a durable, rated 40 amp feed is needed. The reviewer found it especially suited for installations that require a reliable, ready-to-run nonmetallic-sheathed cable rated to 600 volts and 90 Deg C, and appreciated that it arrives on a neat 125 ft spool for longer runs without joins. If you need an indoor, dry-location cable for a heat pump water heater, range feed, or other heavy circuit, this cable does the job without extras.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType NM-B construction:\u003c\/strong\u003e Provides ready-to-install nonmetallic-sheathed cable for standard indoor wiring, reducing the need for separate conduit in approved applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 AWG, 3 conductors plus ground:\u003c\/strong\u003e Delivers the capacity required for 40 amp circuits and common home appliance connections with a dedicated ground included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e125 ft length:\u003c\/strong\u003e Gives longer continuous runs for fewer splices, making routing across rooms or to an outdoor service point more convenient.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600V and 90 Deg C rating:\u003c\/strong\u003e Meets service and temperature limits for typical branch circuit applications, so it can be used within the approved equipment range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack outer jacket:\u003c\/strong\u003e Offers a clean, discreet appearance where the cable is visible above ground in dry indoor spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis cable is aimed at electricians, contractors, and competent DIYers who need a robust 8 AWG feed for appliances or dedicated circuits in homes and commercial buildings where NM-B is permitted. It is particularly useful for runs to heat pump water heaters or other heavy loads where customers reported the wire performed well.\u003c\/p\u003e\u003cp\u003eIt is not intended for direct-burial, wet locations, or exposed outdoor runs without additional protection; buyers who need underground-rated or metallic-armored cable should look for alternatives designed for those environments.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGood build quality and reliable conductivity for 40 amp circuits, matching customer reports of solid performance.\u003c\/li\u003e\n\u003cli\u003e125 ft length reduces the need for splices and simplifies longer installations.\u003c\/li\u003e\n\u003cli\u003ePreassembled 3 conductor plus ground NM-B simplifies residential wiring runs and speeds installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eLimited to above-ground, dry locations, so it is not suitable for wet or buried applications without additional protection.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Type\u003c\/td\u003e\n\u003ctd\u003eRomex NM-B (nonmetallic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGauge and Conductors\u003c\/td\u003e\n\u003ctd\u003e8 AWG, 3 conductors + ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Ampacity\u003c\/td\u003e\n\u003ctd\u003e40 Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd\u003e600V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Rating\u003c\/td\u003e\n\u003ctd\u003e90 Deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e125 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eFor anyone wiring a dedicated 40 amp circuit indoors, this 8\/3 NM-B cable is a dependable and cost-effective choice that balances capacity and convenience. It is good value for straightforward residential or commercial branch circuits where above-ground, dry installation is allowed, but buyers needing wet-location or underground capability should select a different cable type.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCan this cable be used outdoors?\u003c\/strong\u003e\u003cbr\u003eNo. This NM-B cable is rated for above-ground, dry indoor locations only and is not suitable for direct exposure to weather or burial.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the ground conductor included?\u003c\/strong\u003e\u003cbr\u003eYes. The product is a 3-conductor cable with an equipment grounding conductor included for proper grounding of appliances and circuits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat applications is this cable commonly used for?\u003c\/strong\u003e\u003cbr\u003eIt is commonly used for dedicated appliance circuits, heat pump water heaters, and other residential or light commercial branch circuits that require a 40 amp feed.\u003c\/p\u003e","brand":"Southwire","offers":[{"title":"Default Title","offer_id":48177434788059,"sku":"B000ZOQVLI","price":264.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71WqpILh21L._SL1200.jpg?v=1769481406","url":"https:\/\/gearmusthave.com\/products\/8-3-romex-nm-b-125-ft-black-cable-durable-40a-residential-wire","provider":"GearMustHave","version":"1.0","type":"link"}