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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
Parent SKU : MCA6-4
SKU : MCA6-4-250
"The preferred industrial and commercial choice for 3-phase branch circuits, feeder systems, and heavy equipment assemblies. Engineered with a lightweight, interlocking aluminum armor jacket, this pre-protected 4-conductor plus ground assembly eliminates the material and labor costs of traditional conduit-and-wire piping. It allows electrical crews to pull high-capacity 3-phase circuits directly through walls, ceilings, and open cable trays in a fraction of the time.
When your project demands a reliable three-phase configuration or an independent neutral circuit, the 6/4 Aluminum Metal Clad (MC) Cable offers unmatched speed and protection. Built with lightweight, high-performance AA-8000 series aluminum alloy, this cable features four color-coded XHHW-2 insulated phase conductors and a dedicated bare grounding wire inside a flexible aluminum interlocked armor. It allows installation crews to complete complex multi-wire branch circuit runs in half the time of traditional pipe-and-wire setups.
Labor-Saving Armor: Overall aluminum interlocked armor functions as an integrated protective raceway, removing the labor and material expenses of bending and installing separate conduit systems.
Premium AA-8000 Conductor: Manufactured with compact-stranded 8000-series aluminum alloy for high electrical conductivity, low weight, and effortless flexibility during pull runs.
XHHW-2 Insulation: Individual phase conductors are insulated with cross-linked polyethylene (XLPE), providing superior resistance to heat, moisture, and electrical stress in wet or dry locations.
Maximum Versatility: Code-approved for an exceptionally broad range of installations including commercial branch circuits, HVAC units, equipment feeders, and environmental air-handling spaces (plenums).
Conductor Configuration: 4 Insulated Conductors + 1 Bare Ground Wire
Conductor Size: 6 AWG
Conductor Material: AA-8000 Series Compact Stranded Aluminum Alloy (per ASTM B800 & B801)
Conductor Colors: Black, White, Red & Blue
Ground Wire Size: 6 AWG (Bare Conductor)
Insulation: High-Heat & Moisture Resistant Cross-Linked Polyethylene (XLPE / Type XHHW-2). A binder tape is wrapped over the insulated conductors' assembly.
Armor: Overall aluminum interlocked armor.
Voltage Rating: 600 Volts.
Temperature Rating: -40°C to 90°C.
Amp Rating (@ 75°C): 50 Amps.
Amp Rating (@ 90°C): 55 Amps.
Outside Diameter (OD): 0.98 inches
Insulation Thickness: 0.045 inches
Net Weight: 328 lbs/mft (pounds per 1,000 feet)
Minimum Bending Radius: 6.86 inches
UL Listed: UL 1569 (Metal-Clad Cables) & UL 44 (Thermoset-Insulated Wires)
Cable Tray Use: Listed and approved for CT Use
Industry Standards: NEMA WC-70 / ICEA S-95-658 | ASTM B800 & B801
Flame Testing: Passes IEEE 1202 (70,000 BTU/HR Vertical Tray Flame Test)
NEC Air-Handling Compliance: Approved for environmental air spaces per NEC 300.22
NEC Special Occupancies: Approved for Places of Public Assembly (NEC 518.4), Theaters (NEC 520.5), and IT Equipment Rooms (NEC 645.5)
Commercial 3-Phase Power: Frequently utilized for 3-phase power distribution circuits, lighting, and control panels across industrial plants, retail centers, and commercial structures.
Diverse Environmental Routing: Fully approved for installation inside commercial cable trays, approved raceways, concealed or exposed locations, environmental air-handling spaces (plenums), and vertical structural risers.
Industrial Motor & Machinery Feeds: The industry standard for routing power to 3-phase motors, commercial kitchen ventilation, conveyor systems, and heavy production equipment.
Commercial HVAC Controls: Perfectly suited for feeding large-scale HVAC rooftop condensers, air handlers, and chiller systems requiring a dedicated neutral and grounding circuit.
Technical Note: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. Reference NEC Article 330 for specific Metal-Clad installation guidelines.
Ampacity: Ampacities are based on NEC Table 310.15 (B)(16) (or equivalent local reference tables) and show the allowable ampacities of current-carrying insulated conductors in a raceway, cable, or earth based on an ambient temperature of 30°C (86°F). Because most standard commercial electrical panels, breakers, and terminal lugs feature 75°C termination points, circuits should be designed based on the conservative 50-Amp standard. The 55-Amp rating at 90°C is typically utilized for ampacity adjustment and correction factors.
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| Wire Size (AWG/MCM) | 6 AWG |
| Conductor Material | Aluminum |
| Conductor Type | Stranded |
| Outer Diameter (OD) (in/mm) | 0.98 in. |
| Conductor Count | 4 |
| Shield | Unshielded |
| Insulation Type | (XLPE) Cross-Linked Polyethylene |
| Voltage Rating | 600V |
| Ampacity Rating | 55 |
| Submersible | No |
| Temperature Rating | 90ºC |
| Standards | UL 44, 83, 1569 for Type MC Cable for CT Use NEMA WC-70/ICEA S-95-658 IEEEE 1202 70, 000 BTU/HR Vertical Tray Flame Test ASTM B800 & B801 NEC 518.4, NEC 520.5, NEC 645.5, and NEC 300.22 for environmental air-handling spaces. |
| Miscellaneous Information | All values are nominal and subject to correction. **Ampacities are based on NEC Table 310.15(B)(16), and show the allowable Ampacities of three current carrying insulated conductors, in a raceway, cable, or earth based on ambeient temperature of 30°C (86°F). |
| Primary Applications | Service entrance conductors, Feeders, Branch circuits, Power, lighting, control, and signal circuits |
| Common Uses |
|
| Weight per Foot | 0.328 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 : MCA6-4
SKU : MCA6-4-250
Parent SKU : MCA6-4
SKU : MCA6-4-250
"The preferred industrial and commercial choice for 3-phase branch circuits, feeder systems, and heavy equipment assemblies. Engineered with a lightweight, interlocking aluminum armor jacket, this pre-protected 4-conductor plus ground assembly eliminates the material and labor costs of traditional conduit-and-wire piping. It allows electrical crews to pull high-capacity 3-phase circuits directly through walls, ceilings, and open cable trays in a fraction of the time.
When your project demands a reliable three-phase configuration or an independent neutral circuit, the 6/4 Aluminum Metal Clad (MC) Cable offers unmatched speed and protection. Built with lightweight, high-performance AA-8000 series aluminum alloy, this cable features four color-coded XHHW-2 insulated phase conductors and a dedicated bare grounding wire inside a flexible aluminum interlocked armor. It allows installation crews to complete complex multi-wire branch circuit runs in half the time of traditional pipe-and-wire setups.
Labor-Saving Armor: Overall aluminum interlocked armor functions as an integrated protective raceway, removing the labor and material expenses of bending and installing separate conduit systems.
Premium AA-8000 Conductor: Manufactured with compact-stranded 8000-series aluminum alloy for high electrical conductivity, low weight, and effortless flexibility during pull runs.
XHHW-2 Insulation: Individual phase conductors are insulated with cross-linked polyethylene (XLPE), providing superior resistance to heat, moisture, and electrical stress in wet or dry locations.
Maximum Versatility: Code-approved for an exceptionally broad range of installations including commercial branch circuits, HVAC units, equipment feeders, and environmental air-handling spaces (plenums).
Conductor Configuration: 4 Insulated Conductors + 1 Bare Ground Wire
Conductor Size: 6 AWG
Conductor Material: AA-8000 Series Compact Stranded Aluminum Alloy (per ASTM B800 & B801)
Conductor Colors: Black, White, Red & Blue
Ground Wire Size: 6 AWG (Bare Conductor)
Insulation: High-Heat & Moisture Resistant Cross-Linked Polyethylene (XLPE / Type XHHW-2). A binder tape is wrapped over the insulated conductors' assembly.
Armor: Overall aluminum interlocked armor.
Voltage Rating: 600 Volts.
Temperature Rating: -40°C to 90°C.
Amp Rating (@ 75°C): 50 Amps.
Amp Rating (@ 90°C): 55 Amps.
Outside Diameter (OD): 0.98 inches
Insulation Thickness: 0.045 inches
Net Weight: 328 lbs/mft (pounds per 1,000 feet)
Minimum Bending Radius: 6.86 inches
UL Listed: UL 1569 (Metal-Clad Cables) & UL 44 (Thermoset-Insulated Wires)
Cable Tray Use: Listed and approved for CT Use
Industry Standards: NEMA WC-70 / ICEA S-95-658 | ASTM B800 & B801
Flame Testing: Passes IEEE 1202 (70,000 BTU/HR Vertical Tray Flame Test)
NEC Air-Handling Compliance: Approved for environmental air spaces per NEC 300.22
NEC Special Occupancies: Approved for Places of Public Assembly (NEC 518.4), Theaters (NEC 520.5), and IT Equipment Rooms (NEC 645.5)
Commercial 3-Phase Power: Frequently utilized for 3-phase power distribution circuits, lighting, and control panels across industrial plants, retail centers, and commercial structures.
Diverse Environmental Routing: Fully approved for installation inside commercial cable trays, approved raceways, concealed or exposed locations, environmental air-handling spaces (plenums), and vertical structural risers.
Industrial Motor & Machinery Feeds: The industry standard for routing power to 3-phase motors, commercial kitchen ventilation, conveyor systems, and heavy production equipment.
Commercial HVAC Controls: Perfectly suited for feeding large-scale HVAC rooftop condensers, air handlers, and chiller systems requiring a dedicated neutral and grounding circuit.
Technical Note: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. Reference NEC Article 330 for specific Metal-Clad installation guidelines.
Ampacity: Ampacities are based on NEC Table 310.15 (B)(16) (or equivalent local reference tables) and show the allowable ampacities of current-carrying insulated conductors in a raceway, cable, or earth based on an ambient temperature of 30°C (86°F). Because most standard commercial electrical panels, breakers, and terminal lugs feature 75°C termination points, circuits should be designed based on the conservative 50-Amp standard. The 55-Amp rating at 90°C is typically utilized for ampacity adjustment and correction factors.
Â
| Wire Size (AWG/MCM) | 6 AWG |
| Conductor Material | Aluminum |
| Conductor Type | Stranded |
| Outer Diameter (OD) (in/mm) | 0.98 in. |
| Conductor Count | 4 |
| Shield | Unshielded |
| Insulation Type | (XLPE) Cross-Linked Polyethylene |
| Voltage Rating | 600V |
| Ampacity Rating | 55 |
| Submersible | No |
| Temperature Rating | 90ºC |
| Standards | UL 44, 83, 1569 for Type MC Cable for CT Use NEMA WC-70/ICEA S-95-658 IEEEE 1202 70, 000 BTU/HR Vertical Tray Flame Test ASTM B800 & B801 NEC 518.4, NEC 520.5, NEC 645.5, and NEC 300.22 for environmental air-handling spaces. |
| Miscellaneous Information | All values are nominal and subject to correction. **Ampacities are based on NEC Table 310.15(B)(16), and show the allowable Ampacities of three current carrying insulated conductors, in a raceway, cable, or earth based on ambeient temperature of 30°C (86°F). |
| Primary Applications | Service entrance conductors, Feeders, Branch circuits, Power, lighting, control, and signal circuits |
| Common Uses |
|
| Weight per Foot | 0.328 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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6/4 Aluminum MC (Metal Clad) Cable is primarily used to supply 50-Amp power to three-phase commercial and industrial electrical systems, where three hot conductors and one neutral conductor are required. Thanks to its interlocking aluminum armor, it can be pulled directly through framing or laid in open cable trays without installing individual conduit pipe. It is frequently specified for commercial HVAC units, industrial machinery motors, and data center server infrastructure.
Per the National Electrical Code (NEC Table 310.16), 6 AWG aluminum conductors are rated for 50 Amps at the standard 75°C terminal threshold. Therefore, 6/4 Aluminum MC cable should be paired with a standard 50-Amp circuit breaker (typically a 3-pole breaker for 3-phase applications) for most commercial and industrial load setups.
The primary difference is the number of insulated current-carrying conductors. 6/3 MC cable contains three insulated wires (typically 2 hots and 1 neutral), making it ideal for standard single-phase 240V equipment like hot tubs or EV chargers. 6/4 MC cable contains four insulated wires (typically 3 hots and 1 neutral), which is required to deliver three-phase power to industrial equipment or to run complex multi-wire branch circuits. Both cables include an additional bare grounding wire.
No. Standard 6/4 Aluminum MC cable with an open interlocking metal armor is strictly rated for dry, concealed, or exposed indoor applications (including environmental plenums). It cannot be buried directly in soil or embedded in concrete without a protective, fluid-tight PVC outer jacket (Type MC-PCS or PVC-jacketed MC). For underground runs, you should look toward an alternative underground feeder cable or run standalone wires through an approved conduit system.
Yes, it is highly recommended. While modern AA-8000 series aluminum alloy is incredibly stable, electrical best practice dictates applying an approved anti-oxidant paste (such as Noalox or Penetrox) onto the stripped 6 AWG aluminum ends before securing them into mechanical lugs or breaker terminations. This prevents oxygen from forming a resistive film over the connection point, ensuring a safe, low-heat termination.
Wire America supplies an extensive inventory of 6/4 Aluminum MC cable cut by the foot or on master reels. We ship directly from our strategically located regional hubs across the United States, delivering most orders right to your shop or job site within 2 to 4 business days. We prioritize shipping MC Cable from the fulfillment warehouse nearest to your job site to keep transit times minimal. Expedited shipping options are available at checkout for time-sensitive contractor deadlines.
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