From $0.20/ft
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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 : BCSTR1/0-7
SKU : BCSTR1/0-7-250
"Designed for heavy-duty grounding, bonding, and power distribution, this 1/0 AWG Stranded Bare Copper wire is engineered for high-capacity performance. Featuring soft-drawn (annealed) construction, it provides the ideal combination of flexibility and physical mass, making it a reliable solution for utility, industrial, and commercial grounding systems."
This conductor is a primary choice for substation grounding grids, commercial buildings, Industrial plants, and heavy-duty lightning protection systems. Its stranded construction ensures manageable installation in the field, while the high-purity copper ensures a safe, low-impedance path to ground for critical infrastructure.
High Conductivity: 99.9% pure copper provides a massive, low-impedance path to ground.
Soft-Drawn (Annealed): Despite its thickness, the annealing process ensures the wire remains flexible enough for bending around grounding lugs and through conduit.
7-Strand Construction: A robust design that provides high tensile strength and excellent mechanical durability for direct burial.
Environmental Resilience: Bare copper offers natural, long-term resistance to corrosion in soil and concrete.
ENGINEERING OVERVIEW
Conductor Size: 1/0
Construction: 7-Strand
Temper: Soft-Drawn (Annealed)
Material: Bare Copper (Uninsulated)
Overall Diameter: 0.368 inches (9.37 mm)
Approx. Weight: 325.8 lbs per 1,000 ft
DC Resistance at 20ºC: 0.10020 Ohms/1000 ft.
Rated Strength: 3,221 lbs.
Standards: ASTM B-3, ASTM B-8, Federal Spec QQ-W-343.
Commercial Service Grounding: Connecting large service panels to grounding electrodes.
Grounding Rings: The standard gauge for buried ground loops surrounding large commercial structures.
Substation Grids: Essential for bonding equipment and creating safety grids in utility substations.
Lightning Down-Conductors: Providing a high-capacity path for lightning protection on tall buildings and towers.
Industrial Bonding: Connecting heavy industrial machinery and structural steel to the main grounding system.
Solar Utility Infrastructure: Used for large-scale bonding of mounting racks in utility-grade solar farms.
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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) | 1/0 |
| Conductor Material | Copper |
| Conductor Type | Stranded |
| Strand Count | 7 |
| Outer Diameter (OD) (in/mm) | 0.368 in. |
| Conductor Count | 1 |
| Shield | Unshielded |
| Ampacity Rating | 310 |
| 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-364 |
| 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 | 0.3258 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 : BCSTR1/0-7
SKU : BCSTR1/0-7-250
Parent SKU : BCSTR1/0-7
SKU : BCSTR1/0-7-250
"Designed for heavy-duty grounding, bonding, and power distribution, this 1/0 AWG Stranded Bare Copper wire is engineered for high-capacity performance. Featuring soft-drawn (annealed) construction, it provides the ideal combination of flexibility and physical mass, making it a reliable solution for utility, industrial, and commercial grounding systems."
This conductor is a primary choice for substation grounding grids, commercial buildings, Industrial plants, and heavy-duty lightning protection systems. Its stranded construction ensures manageable installation in the field, while the high-purity copper ensures a safe, low-impedance path to ground for critical infrastructure.
High Conductivity: 99.9% pure copper provides a massive, low-impedance path to ground.
Soft-Drawn (Annealed): Despite its thickness, the annealing process ensures the wire remains flexible enough for bending around grounding lugs and through conduit.
7-Strand Construction: A robust design that provides high tensile strength and excellent mechanical durability for direct burial.
Environmental Resilience: Bare copper offers natural, long-term resistance to corrosion in soil and concrete.
ENGINEERING OVERVIEW
Conductor Size: 1/0
Construction: 7-Strand
Temper: Soft-Drawn (Annealed)
Material: Bare Copper (Uninsulated)
Overall Diameter: 0.368 inches (9.37 mm)
Approx. Weight: 325.8 lbs per 1,000 ft
DC Resistance at 20ºC: 0.10020 Ohms/1000 ft.
Rated Strength: 3,221 lbs.
Standards: ASTM B-3, ASTM B-8, Federal Spec QQ-W-343.
Commercial Service Grounding: Connecting large service panels to grounding electrodes.
Grounding Rings: The standard gauge for buried ground loops surrounding large commercial structures.
Substation Grids: Essential for bonding equipment and creating safety grids in utility substations.
Lightning Down-Conductors: Providing a high-capacity path for lightning protection on tall buildings and towers.
Industrial Bonding: Connecting heavy industrial machinery and structural steel to the main grounding system.
Solar Utility Infrastructure: Used for large-scale bonding of mounting racks in utility-grade solar farms.
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
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| Wire Size (AWG/MCM) | 1/0 |
| Conductor Material | Copper |
| Conductor Type | Stranded |
| Strand Count | 7 |
| Outer Diameter (OD) (in/mm) | 0.368 in. |
| Conductor Count | 1 |
| Shield | Unshielded |
| Ampacity Rating | 310 |
| 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-364 |
| 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 | 0.3258 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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Yes. 1/0 bare copper is a standard choice for grounding electrode conductors (GEC) on large commercial services. It is specifically designed to handle the significant fault currents associated with high-amperage systems. Always verify your specific requirements against NEC Table 250.66.
1/0 is the next size larger than 1 AWG. In the American Wire Gauge system, "0" (aught) sizes are larger than "1." 1/0 copper has a higher ampacity and a larger cross-sectional area, making it better suited for higher-capacity grounding systems and larger service entrances.
Absolutely. 1/0 bare copper is the industry standard for "Grounding Mats" and "Grounding Rings" around industrial facilities and substations. It is naturally resistant to soil corrosion and provides a massive surface area for a low-impedance connection to the earth.
The main difference is the coating.
Depending on your fill requirements, a 1.25-inch or 1.5-inch conduit is typical for 1/0 stranded wire. Because of its weight and diameter, using a sweeping bend or a larger conduit helps ensure a smooth pull without damaging the wire. Always consult with a certified electrician/installer before deciding on conduit size.
Yes, our 1/0 stranded bare copper meets ASTM B-3 (soft/annealed) and ASTM B-8 (concentric-lay-stranded) standards. These are the benchmarks required by utility companies and industrial engineers to ensure the copper is of the highest purity and structural integrity.
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