
6/3 W/GRND NM-B Round Copper Cable 600V
Best price now
93% under what the other stores charge
Compared across 6 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.
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Price facts
- Lowest price today: $46.99 at Amazon (checked Nov 12, 2026).
- Checked at 6 stores.
6/3 W/GRND NM-B Round Copper Cable 600V prices at every store
- The Home DepotNew
In stock
$110.00Free shippingChecked 1 h ago - WalmartNew
In stock
$659.80Free shippingChecked 1 h ago - NassauNationalCableNew
In stockReturn policy
$1,197.50Checked 1 h ago - Grainger Industrial SupplyNew
In stock
$2,550.89+ $231.69 shippingChecked 1 h ago - AmazonNew
Availability unknown
As an Amazon Associate, Deal.ai earns from qualifying purchases.
$46.99Free shippingChecked 1 h ago - Lowe'sNew
Out of stock
$535.00Free shippingChecked 1 h ago
Store links may earn us a commission.
6/3 W/GRND NM-B Round Copper Cable 600V price history
Lowest price we've seen: $46.99 on Nov 12 at Amazon. Tracked across 5 stores since Nov 12.
About the 6/3 W/GRND NM-B Round Copper Cable 600V
6/3 W/GRND NM-B Round Copper Cable 600V
Application:
600 Volt, multi conductor cable constructed with copper conductors, thermoplastic insulation (PVC/Nylon) rated 90°C with a bare copper ground, enclosed within an overall polyvinyl chloride jacket. The allowable ampacity is limited to 60°C per the NEC. Type NM-B Cables are primarily used in dry locations for residential wiring as branch circuits for outlets, switches and other loads. Type NM-B Cables are permitted for both exposed and concealed work in normally dry locations except as prohibited by NEC and also permitted to be installed or fished in air voids in masonry block or tile walls where locations are not damp or wet. Voltage for all applications is 600 volts.
Also Known As:
6/3 NM-B Wire, 6/3 NM-B Cable, 6/3 Non-Metallic Sheathed Cable, 6/3 Non-Metallic Sheathed Wire, 6/3 W Grnd NM-B, 6/3 Electrical Wire, 6/3 nmb For Sale, 6/3 Indoor Wire, 6/3 Flexible Romex, Romex Wire 12 2, 6/3 White Wire, 6/3 NM Cable, 6/3 NM Wire, 6/3 Residential Cable, 6/3 House Wire, 6/3 Home Wiring Cable, 6/3 Branch Circuit Wire, 6/3 Grounded Wire, 6/3 Round Wire, 6/3 NM-B Round Cable, 6/3 NM-B Round.
Construction:
Conductor:
Fully annealed bare copper. Stranded conductor per ASTM B3 & ASTM B8.
Insulation:
Extruded flame retardant, heat and moisture resistant colored Polyvinyl Chloride (PVC) compound.
Overall Jacket:
Extruded tough Polyamide (nylon) compound.
Ground:
Bare uncoated solid copper wrapped with a fire-retardant paper tape.
Assembly:
Flat configuration: Paper wrapped ground Placed between the insulated conductors and laid parallel.
Round configuration: Insulated conductors and ground twisted together.
Separator:
A suitable paper wrap applied over the assembled conductors.
Jacket:
Overall colored Polyvinyl Chloride (PVC) compound color coded for quick conductor size identification as follows:
i 14 AWG
i 12 AWG
il 10 AWG
Questions and answers
- Where is the 6/3 W/GRND NM-B Round Copper Cable 600V cheapest?
- At Amazon, for $46.99, 93% under what the other stores charge, as of our latest check.
- Where can I buy the 6/3 W/GRND NM-B Round Copper Cable 600V?
- 6 stores we checked sell it, including NassauNationalCable, The Home Depot, Amazon, Lowe's, Walmart.





