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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 : BCSTR2/0-7
SKU : BCSTR2/0-7-250
"Designed for high-amperage grounding, bonding, and utility applications, this 2/0 Stranded Bare Copper wire is engineered for peak performance. Featuring soft-drawn (annealed) construction, it provides the ideal combination of flexibility and massive cross-sectional area, making it a reliable solution for heavy-duty commercial and industrial grounding systems."
The 2/0 conductor is a heavy-duty industry standard for large-scale grounding. As systems move toward 600-Amp services and beyond, 2/0 provides the massive cross-sectional area needed to safely manage high-magnitude fault currents and lightning discharges.
High Conductivity: 99.9% pure copper provides a massive, ultra-low-impedance path to ground.
Soft-Drawn (Annealed): Despite its large gauge, the annealing process ensures the wire remains workable for routing around massive bus bars and through heavy-duty conduit.
7-Strand Construction: A rugged, high-strength design that offers a massive surface area for mechanical grounding connectors.
Permanent Durability: Naturally resistant to soil chemicals and moisture, making it the premier choice for permanent direct burial ground loops.
ENGINEERING OVERVIEW
Conductor Size: 2/0Â
Construction: 7-Strand
Temper: Soft-Drawn (Annealed)
Material: Bare Copper (Uninsulated)
Overall Diameter: 0.414 inches (10.51 mm)
Approx. Weight: 410.9 lbs per 1,000 ft
DC Resistance at 20ºC: 0.07950 Ohms/1000 ft.
Rated Strength: 4,062 lbs.
Standards: ASTM B-3, ASTM B-8,
Industrial Main Service Grounding: The standard grounding electrode conductor for commercial and industrial electrical services.
Utility Substations: Used extensively in buried grounding grids to protect expensive utility equipment and personnel.
High-Rise Lightning Protection: A primary conductor for lightning protection systems in skyscrapers and industrial smokestacks.
Data Center Infrastructure: Provides the robust low-impedance grounding required to protect high-density server racks and UPS systems.
Telecommunications Towers: Essential for bonding tower structures and equipment shelters to prevent damage from atmospheric discharges.
Large Solar Arrays: Used for main trunk grounding lines in utility-scale 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) | 2/0 |
| Conductor Material | Copper |
| Conductor Type | Stranded |
| Strand Count | 7 |
| Outer Diameter (OD) (in/mm) | 0.414 in. |
| Conductor Count | 1 |
| Shield | Unshielded |
| Ampacity Rating | 355 |
| 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-366 |
| 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 | 0.4109 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 : BCSTR2/0-7
SKU : BCSTR2/0-7-250
Parent SKU : BCSTR2/0-7
SKU : BCSTR2/0-7-250
"Designed for high-amperage grounding, bonding, and utility applications, this 2/0 Stranded Bare Copper wire is engineered for peak performance. Featuring soft-drawn (annealed) construction, it provides the ideal combination of flexibility and massive cross-sectional area, making it a reliable solution for heavy-duty commercial and industrial grounding systems."
The 2/0 conductor is a heavy-duty industry standard for large-scale grounding. As systems move toward 600-Amp services and beyond, 2/0 provides the massive cross-sectional area needed to safely manage high-magnitude fault currents and lightning discharges.
High Conductivity: 99.9% pure copper provides a massive, ultra-low-impedance path to ground.
Soft-Drawn (Annealed): Despite its large gauge, the annealing process ensures the wire remains workable for routing around massive bus bars and through heavy-duty conduit.
7-Strand Construction: A rugged, high-strength design that offers a massive surface area for mechanical grounding connectors.
Permanent Durability: Naturally resistant to soil chemicals and moisture, making it the premier choice for permanent direct burial ground loops.
ENGINEERING OVERVIEW
Conductor Size: 2/0Â
Construction: 7-Strand
Temper: Soft-Drawn (Annealed)
Material: Bare Copper (Uninsulated)
Overall Diameter: 0.414 inches (10.51 mm)
Approx. Weight: 410.9 lbs per 1,000 ft
DC Resistance at 20ºC: 0.07950 Ohms/1000 ft.
Rated Strength: 4,062 lbs.
Standards: ASTM B-3, ASTM B-8,
Industrial Main Service Grounding: The standard grounding electrode conductor for commercial and industrial electrical services.
Utility Substations: Used extensively in buried grounding grids to protect expensive utility equipment and personnel.
High-Rise Lightning Protection: A primary conductor for lightning protection systems in skyscrapers and industrial smokestacks.
Data Center Infrastructure: Provides the robust low-impedance grounding required to protect high-density server racks and UPS systems.
Telecommunications Towers: Essential for bonding tower structures and equipment shelters to prevent damage from atmospheric discharges.
Large Solar Arrays: Used for main trunk grounding lines in utility-scale 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
Â
| Wire Size (AWG/MCM) | 2/0 |
| Conductor Material | Copper |
| Conductor Type | Stranded |
| Strand Count | 7 |
| Outer Diameter (OD) (in/mm) | 0.414 in. |
| Conductor Count | 1 |
| Shield | Unshielded |
| Ampacity Rating | 355 |
| 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-366 |
| 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 | 0.4109 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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2/0 is a heavy-duty conductor used for high-amperage grounding. It is most commonly found as the main grounding wire for large industrial buildings, buried ground rings for sensitive facilities (like data centers), and as a primary grounding source for utility-scale transformers and substations.
The nominal outside diameter (OD) of 2/0 stranded bare copper is 0.414 inches (10.51 mm).
Typically yes, 2/0 AWG is a very common requirement for the grounding electrode conductor (GEC) on large 600-amp commercial and industrial services. Because of the high ampacity of the service entrance conductors, the NEC often mandates 2/0 copper to ensure fault currents are safely managed. Always verify with NEC Table 250.66. or consult with a certified electrician to determine if this is the right size for your project.
Absolutely. 2/0 is a staple size for creating interconnected grounding grids (mats) in utility substations. Its large physical mass and high conductivity provide a low-resistance path that is essential for both personnel safety and equipment protection in high-voltage areas.
At the 2/0 size, a solid copper bar is extremely rigid and virtually impossible to route through conduit. The stranded construction provides the flexibility needed to navigate turns in the conduit run and ensures a better, more secure fit when using mechanical lugs or split-bolt connectors.
Yes. Bare copper is highly resistant to corrosion from soil and moisture. 2/0 is the industry standard for buried "Ring Grounds" that encircle commercial buildings to provide facility-wide lightning and surge protection.
Yes. Our 2/0 stranded bare copper is manufactured to meet ASTM B-3 (soft/annealed) and ASTM B-8 (concentric-lay-stranded). This ensures the wire meets all professional and utility-grade requirements for conductivity and structural integrity.
Absolutely. Our 2/0 stranded bare copper is made of soft-drawn, high-conductivity copper that is perfectly suited for exothermic welding, mechanical ground clamps, and compression lugs. It provides a permanent, low-resistance connection that won't degrade underground.
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