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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 : BCSTR1
SKU : BCSTR1-250
"Designed for high-conductivity grounding and bonding, this 1 AWG Stranded Bare Copper wire is engineered for peak performance. Featuring soft-drawn (annealed) construction, it provides the perfect balance of flexibility and strength, making it a reliable solution for residential, commercial, and industrial grounding systems."
This conductor provides a high-capacity path for fault currents in large-scale electrical systems. As services scale beyond standard residential sizes, 1 AWG offers the necessary cross-sectional area to minimize impedance and ensure safety in high-demand environments.
High Conductivity: 99.9% pure copper ensures a low-resistance path, critical for sensitive electronics and heavy machinery.
Soft-Drawn (Annealed): Despite its large diameter, the annealing process ensures it remains workable for installation in panels and conduit.
7-Strand Construction: Rugged and durable, providing high tensile strength and a reliable surface for heavy-duty mechanical connectors.
Corrosion Resistance: Uninsulated bare copper is naturally resistant to environmental stress, making it the top choice for permanent grounding installations.
ENGINEERING OVERVIEW
Conductor Size: 1 AWG
Construction: 7-Strand
Temper: Soft-Drawn (Annealed)
Material: Bare Copper (Uninsulated)
Overall Diameter: 0.328 inches
Approx. Weight: 258.4 lbs per 1,000 ft
DC Resistance at 20ºC: 0.12520 Ohms/1000 ft.
Rated Strength: 2,552 lbs.
Standards: ASTM B-3 (Soft/Annealed), ASTM B-8 (Concentric-Lay-Stranded), Federal Spec QQ-W-360.
Industrial Main Service Grounding: Used for grounding high-amperage industrial services where current requirements exceed #2 gauge.
Grounding Grids: A primary component for utility-scale grounding grids in substations or large manufacturing plants.
Lightning Protection: Used as a heavy-duty down-conductor for large commercial structures and high-rise buildings.
Sub-Panel Bonding: Providing a reliable safety ground for massive secondary distribution hubs.
Transformer Grounding: Essential for bonding transformer tanks and neutral bushings to the grounding system.
Wind & Solar Farms: Used for grounding collection systems and bonding equipment frames across large sites.
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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.
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| Wire Size (AWG/MCM) | 1 AWG |
| Conductor Material | Copper |
| Conductor Type | Stranded |
| Strand Count | 7 |
| Outer Diameter (OD) (in/mm) | 0.328 in. |
| Conductor Count | 1 |
| Shield | Unshielded |
| Ampacity Rating | 265 |
| Direct Burial Rating | Yes |
| Submersible | No |
| Sunlight Resistance Rating | Yes |
| Standards | ASTM B-1 Hard-drawn copper wire ASTM B-2 Medium-hard drawn copper wire ASTM B-3 Soft or annealed copper wire ASTM B-8 Concentric-lay stranded copper conductors: hard, medium-hard, or soft ASTM B-33 Tinned soft or annealed copper wire ASTM B-258 Federal Sepc QQ-W-363 |
| Miscellaneous Information | All values are nominal and subject to correction. *Ampacity based on 75ºC conductor temperature; 25ºC ambient temperature; 2ft./sec. wind in sun. |
| Primary Applications | Grounding Systems, Overhead Power Distribution, Ground Wire for Lightning Protection, Bonding Applications, Messenger and Support Wires |
| Common Uses |
|
| Weight per Foot | 0.2584 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.
Parent SKU : BCSTR1
SKU : BCSTR1-250
Parent SKU : BCSTR1
SKU : BCSTR1-250
"Designed for high-conductivity grounding and bonding, this 1 AWG Stranded Bare Copper wire is engineered for peak performance. Featuring soft-drawn (annealed) construction, it provides the perfect balance of flexibility and strength, making it a reliable solution for residential, commercial, and industrial grounding systems."
This conductor provides a high-capacity path for fault currents in large-scale electrical systems. As services scale beyond standard residential sizes, 1 AWG offers the necessary cross-sectional area to minimize impedance and ensure safety in high-demand environments.
High Conductivity: 99.9% pure copper ensures a low-resistance path, critical for sensitive electronics and heavy machinery.
Soft-Drawn (Annealed): Despite its large diameter, the annealing process ensures it remains workable for installation in panels and conduit.
7-Strand Construction: Rugged and durable, providing high tensile strength and a reliable surface for heavy-duty mechanical connectors.
Corrosion Resistance: Uninsulated bare copper is naturally resistant to environmental stress, making it the top choice for permanent grounding installations.
ENGINEERING OVERVIEW
Conductor Size: 1 AWG
Construction: 7-Strand
Temper: Soft-Drawn (Annealed)
Material: Bare Copper (Uninsulated)
Overall Diameter: 0.328 inches
Approx. Weight: 258.4 lbs per 1,000 ft
DC Resistance at 20ºC: 0.12520 Ohms/1000 ft.
Rated Strength: 2,552 lbs.
Standards: ASTM B-3 (Soft/Annealed), ASTM B-8 (Concentric-Lay-Stranded), Federal Spec QQ-W-360.
Industrial Main Service Grounding: Used for grounding high-amperage industrial services where current requirements exceed #2 gauge.
Grounding Grids: A primary component for utility-scale grounding grids in substations or large manufacturing plants.
Lightning Protection: Used as a heavy-duty down-conductor for large commercial structures and high-rise buildings.
Sub-Panel Bonding: Providing a reliable safety ground for massive secondary distribution hubs.
Transformer Grounding: Essential for bonding transformer tanks and neutral bushings to the grounding system.
Wind & Solar Farms: Used for grounding collection systems and bonding equipment frames across large sites.
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) | 1 AWG |
| Conductor Material | Copper |
| Conductor Type | Stranded |
| Strand Count | 7 |
| Outer Diameter (OD) (in/mm) | 0.328 in. |
| Conductor Count | 1 |
| Shield | Unshielded |
| Ampacity Rating | 265 |
| Direct Burial Rating | Yes |
| Submersible | No |
| Sunlight Resistance Rating | Yes |
| Standards | ASTM B-1 Hard-drawn copper wire ASTM B-2 Medium-hard drawn copper wire ASTM B-3 Soft or annealed copper wire ASTM B-8 Concentric-lay stranded copper conductors: hard, medium-hard, or soft ASTM B-33 Tinned soft or annealed copper wire ASTM B-258 Federal Sepc QQ-W-363 |
| Miscellaneous Information | All values are nominal and subject to correction. *Ampacity based on 75ºC conductor temperature; 25ºC ambient temperature; 2ft./sec. wind in sun. |
| Primary Applications | Grounding Systems, Overhead Power Distribution, Ground Wire for Lightning Protection, Bonding Applications, Messenger and Support Wires |
| Common Uses |
|
| Weight per Foot | 0.2584 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:
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1 AWG is primarily used in commercial and industrial grounding. It is commonly utilized as a grounding electrode conductor for large service entrances, as the main grounding wire for utility transformers, and in the construction of comprehensive grounding grids for data centers or industrial facilities.
While 1 AWG is thicker (0.328" diameter), our soft-drawn annealing process keeps the copper flexible enough for most professional installations. However, due to its increased weight (approx. 258 lbs per 1,000 ft), specialized tools or mechanical assistance may be required for long conduit pulls.
Yes. 1 AWG Bare Copper is rated for direct burial. It is highly resistant to soil corrosion, which is why it is preferred for building grounding rings (ground loops) around large commercial structures to dissipate lightning and surge energy.
At 1 AWG, copper becomes quite stiff if it is "hard drawn." By using soft-drawn (annealed) copper, we ensure the wire is much easier to manipulate around grounding bus bars and into mechanical lugs, saving time and physical effort on the job site.
Depending on the number of conductors and local code, 1 AWG is typically pulled through 1-inch or 1.25-inch conduit. Always refer to the NEC conduit fill tables to ensure proper airflow and ease of pulling.
The main difference is the protective coating.
Yes. 1 AWG is an excellent conductor for counterpoise systems, which are underground horizontal grounding conductors used to provide a low-impedance path to earth. Its large surface area and high mass make it highly effective at dissipating the high-energy surges associated with lightning strikes.
Note: Always consult with a certified local electrician in your jurisdiction before purchasing
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