From $0.20/ft
128 Products
-
Solid THHN/THWN-2 WireFrom $0.20/ft -
Solid THHN/THWN-2 WireFrom $0.20/ft - Solid THHN/THWN-2 WireFrom $0.20/ft
- Solid THHN/THWN-2 WireFrom $0.20/ft
Parent SKU : THN10CST
SKU : THN10CST-250-BK
"The essential choice for 30-amp residential and commercial branch circuits—engineered with dual-rated THHN/THWN-2 insulation and a friction-reducing nylon jacket for maximum reliability in 600V applications."
The #10 AWG copper building wire is the standard for high-draw appliances requiring a 30-amp circuit. Whether you are wiring a clothes dryer, a central air conditioning unit, or a water heater, this stranded copper wire provides the flexibility and heat resistance needed for a professional installation.
Dual Rated (THHN/THWN-2): Engineered for dry locations up to 90°C (THHN) and wet locations (THWN-2), providing maximum versatility for indoor and outdoor conduits.
Tough PVC/Nylon Jacket: The high-heat and moisture-resistant PVC insulation is protected by a tough, friction-reducing Nylon outer sheath, making for easier pulls through tight bends.
High-Conductivity Copper: Manufactured with soft-annealed stranded copper to provide maximum flexibility and superior electrical conductivity for branch circuits and feeders.
Oil & Gasoline Resistant: The specialized jacket is designed to resist chemical degradation, making it ideal for industrial environments and service station wiring.
30-Amp Appliance Circuits: The industry standard for wiring clothes dryers, electric water heaters, and larger built-in microwaves.
AC Condenser Units: Frequently used to power residential central air conditioning units and heat pumps requiring 30-amp overcurrent protection.
Sub-Panel Feeders: Ideal for small detached sheds or outbuildings where a 30-amp sub-panel is sufficient for lighting and basic tools.
EV Charging: Often used for Level 2 EV chargers that are limited to a 24-amp continuous draw (on a 30-amp breaker).
Commercial Branch Circuits: Used in commercial settings for high-wattage equipment and long-run circuits to mitigate voltage drop.
ENGINEERING OVERVIEW: 10 AWG STR THHN 600V
APPLICATION: General purpose wiring for branch circuits and feeders in residential, commercial, and industrial power distribution.
VOLTAGE: Rated for 600 Volts.
CONDUCTORS: Stranded soft-annealed copper.
INSULATION: Heat and moisture-resistant PVC (Polyvinyl Chloride).
JACKET: Clear nylon (polyamide)
TEMPERATURE: 90°C Dry (THHN), 90°C Wet (THWN-2).
Â
Technical Note: All values are nominal and subject to industry tolerances and manufacturer corrections. Specifications are subject to change without notice. It is the buyer’s responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes.
Â
| Wire Size (AWG/MCM) | 10 AWG |
| Conductor Material | Copper |
| Conductor Type | Stranded |
| Strand Count | 19 |
| Outer Diameter (OD) (in/mm) | 0.170 in. / 4.318 mm |
| Conductor Count | 1 |
| Shield | Unshielded |
| Insulation Type | (THHN) Thermoplastic High Heat-Resistant Nylon-coated |
| UL Listing Numbers | UL 83, UL 1063, UL 758 |
| Voltage Rating | 600V |
| Ampacity Rating | 40 |
| Submersible | No |
| Standards | UL 83 UL VW-1 Size 1/0 & larger suitable for cable tray use MTW per UL 1063 ASTM B1, B3, B8 Federal Spec A-A-59548 |
| Miscellaneous Information | All values are nominal and subject to correction. *90°C Wet/Dry Per NEC Table 310.15 (B)(16) for not more than three conductors in raceway based on 30°C ambient temperature. |
| Primary Applications | General-purpose electrical wiring in commercial, industrial, and residential structures. It's widely used to supply power to outlets, switches, lighting fixtures, and other electrical loads throughout a building |
| Weight per Foot | 0.039 lb |
In-stock orders placed before 3pm EST typically ship within 1-2 business days. Our business days are Monday through Friday; we do not process orders on Saturday, Sunday, or major US Holidays.
You will receive an e-mail with a tracking number within 1-2 business days from the time its shipped. You will also be able to view your order status and tracking numbers in your account order history.
Expedited shipments are delivered Monday-Friday except on US Holidays. The order must be placed before 12pm CST to ship same day ( Mon-Fri Only).
You have 30 days from the day you receive the item to contact us for a return. Returns are subject to a 30% Restocking Fee.
Please contact us at help@wireamerica.com to request a return authorization. Have your order number or name the order was placed with ready and we will email you an RMA (return) number and instructions for return. Currently, we do not offer exchanges. A new order must be placed if you need a different item. If you provide the new order number at the time of your return request, the restocking fee may be lowered.
Orders on any items with a material value of $50 or less are non-returnable.
Get notified when this product is back in stock
Physical Specifications
Technical Specifications
Usage & Installation:
Packaging & Dimensions:
|
||||||||||||||||||||||||||||||||
10 AWG THHN copper wire is rated for 40 Amps at 90°C. However, per the NEC (National Electrical Code) "Small Conductor" rules, the overcurrent protection (breaker size) for #10 copper is typically limited to 30 Amps. This ensures the wire does not overheat when used in standard residential and commercial applications.
A 1/2-inch conduit is the standard minimum for up to four 10 AWG conductors. If you are pulling more than four wires, or if the run includes multiple 90-degree bends, upgrading to a 3/4-inch conduit is recommended. This prevents the nylon jacket from being damaged by excessive friction during the pull.
Note on Conduit Sizing: These recommendations are based on standard NEC 40% fill guidelines for general informational purposes. Always consult with a licensed electrician or project engineer to verify final conduit specifications and gauge size.
Yes, #10 AWG THHN is the industry standard for 30-Amp dryer circuits. Using stranded wire is particularly helpful here, as it makes it much easier to terminate the wire into the dryer receptacle box compared to solid wire.
Yes, because this wire is dual-rated as THWN-2. The "W" in the rating stands for "Wet," meaning the insulation is specifically engineered to handle the moisture often found in underground conduit systems. It is not, however, rated for direct burial without a conduit. Our Type UF-B (Underground Feeder) or Type USE-2 are rated for direct burial.
Stranded 10 AWG is the preferred choice for conduit work because of its flexibility. While solid #10 is sometimes used for its lower price point, it is very stiff and difficult to pull through bends. Our stranded #10 provides the same electrical capacity while making it much easier to "land" the wire in tight junction boxes and on device terminals.
(833) 268-8644
Get this thing filled up so you can help Wire America!