Black FridayDealsBuying guidesBrandsStoresTermsPrivacydeal.ai apps

© Deal.ai Inc.

Deal.ai
N
NM-B 10/3 Copper w/Ground Non-Metallic Sheathed Branch Circuit Cable, 500 ft Reel

NM-B 10/3 Copper w/Ground Non-Metallic Sheathed Branch Circuit Cable, 500 ft Reel

Last price we saw

$1,441.02at Echo Electric, last seen Nov 1

Prices change often: ask the agent below to check today's price at every store.

Prices are checked against each store and labelled with when.

Ask our shopping agent

Enter to send, Shift+Enter for a new line

Our take on the NM-B 10/3 Copper w/Ground Non-Metallic Sheathed Branch Circuit Cable, 500 ft Reel

This is a 500 ft reel of Southwire-style NM-B 10/3 copper cable with ground, the standard sheathed branch-circuit wire used for 30-amp runs in dry indoor locations. The three insulated #10 conductors plus bare ground let you wire 240V circuits like dryers, water heaters and small subpanels, or 120V circuits needing a neutral. It is sold by the reel, so the price is a project cost rather than a per-foot one; compare reel prices across stores before buying, since 10/3 costs noticeably more per foot than 12/2 or 14/2.

Best forWiring a 30-amp 240V dryer or water heater circuit
Feeding a small subpanel or workshop outlet run
Indoor branch circuits that need a neutral plus ground
Electricians buying in bulk for a remodel
Pros
  • Three #10 conductors plus ground handle 30-amp circuits
  • NM-B sheath is easy to strip and staple along framing
  • 500 ft reel covers long runs without splices
  • Copper conductors are the standard for residential branch wiring
  • Widely accepted under NEC for dry, protected indoor locations
Cons
  • Not rated for wet locations, outdoors or buried conduit
  • 10/3 is stiff and heavy; pulling long runs takes effort
  • Costs substantially more per foot than 12/2 or 14/2
  • 500 ft is more than many single-circuit jobs need

NM-B 10/3 Copper w/Ground Non-Metallic Sheathed Branch Circuit Cable, 500 ft Reel prices at every store

  • Echo ElectricCheck price at Echo Electric

NM-B 10/3 Copper w/Ground Non-Metallic Sheathed Branch Circuit Cable, 500 ft Reel price history

Lowest price we've seen: $1,441.02 on Nov 1 at Echo Electric. Tracked across 1 store since Nov 1.

What reviewers say

Electricians and DIYers generally rate NM-B 10/3 as reliable, code-compliant wire that strips cleanly and holds up on long pulls. Complaints center on stiffness in cold weather and the price premium over lighter gauges.

Pros
  • Sheath strips cleanly and conductors are easy to identify
  • Holds up well when stapled and pulled through framing
  • Consistent copper quality and accurate reel lengths
Cons
  • Stiff and hard to bend in cold temperatures
  • Expensive compared with 12/2 or 14/2
  • Heavy 500 ft reel is awkward to handle alone

Specifications

Conductor Size
#10
Number Of Conductors
3
Cable Type
NM-B
Grounding
With Ground
Spool Length
500ft

Questions and answers

Is 10/3 NM-B good for a dryer?
Yes. A 30-amp 240V dryer circuit typically calls for 10/3 with ground, which gives two hots, a neutral and ground. Check your local code and the dryer's nameplate before committing.
Can I use this cable outdoors or underground?
No. NM-B is rated for dry, protected indoor locations only. For outdoor or buried runs, use UF cable or conduit-rated conductors.
How many amps can 10-gauge wire carry?
In typical residential branch circuits, #10 copper is used on 30-amp breakers. Ampacity depends on insulation rating and installation method, so confirm against the code table for your situation.
What is the difference between 10/2 and 10/3?
10/2 has two insulated conductors plus ground; 10/3 adds a third insulated conductor, usually a neutral. Choose 10/3 when the circuit needs a neutral, such as a dryer or subpanel feed.
How much does 500 ft of 10/3 weigh?
Expect roughly 60 to 70 pounds for a 500 ft reel, so plan for two people or a cart when moving it.
When is the best time to buy a 500 ft reel?
Copper prices drive this cable, so reel prices move with the metals market. Compare store prices and watch for bulk pricing rather than waiting for seasonal sales.