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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 : PPLEX350-3-BOY
SKU : PPLEX350-3-BOY-250
Purpose-built for high-leg delta or 480V commercial power systems, this 350 MCM Priority-Plex® twisted assembly is engineered to solve the physical and logistical challenges of high-amperage installations. By consolidating three large-gauge conductors into a single, factory-synchronized twist, this cable eliminates the friction and reel-management headaches typically associated with heavy industrial pulls, allowing your crew to finish the job with less equipment and lower risk.
When dealing with the significant weight of 350 MCM conductors, setup efficiency is paramount. The Priority-Plex® configuration transforms a traditionally difficult multi-reel pull into a streamlined, single-source operation. This significantly reduces the job site footprint and ensures the conductors stay in a stable, balanced geometry throughout the most aggressive conduit turns.
Friction-Reducing Pulling Geometry: The twisted architecture minimizes the total surface area in contact with the raceway, facilitating a much smoother glide than loose, parallel conductors.
480V Phase Identification: Features industry-standard Brown, Orange, and Yellow conductors for immediate circuit recognition in high-voltage industrial applications.
Extreme-Grade XHHW-2 Insulation: The cross-linked polyethylene (XLP) jacket is optimized for maximum heat dissipation, chemical resistance, and long-term moisture protection.
High-Performance AA-8000 Aluminum: Offers the necessary current-carrying capacity for heavy industrial services with a manageable weight profile that protects your team from excessive physical strain.
Conductor Size: 350 MCM (kcmil)
Number of Conductors: 3 (Twisted)
Color Code: Brown, Orange, Yellow
Ampacity: 250 Amps at 75°C / 280 Amps at 90°C (NEC Table 310.16)
Voltage: 600V
Insulation: Cross-linked Polyethylene (XLP), Type XHHW-2
Max Temp: 90°C (Wet/Dry)
Conductor Material: AA-8000 Series Aluminum Alloy
Standards: UL 44, UL 854, ASTM B800, B801, Federal Spec A-A-59544
Industrial High-Voltage Feeders: The primary solution for 480V motor control centers and heavy manufacturing equipment.
Commercial Distribution Hubs: Ideal for routing power from the main service entrance to large distribution panels in shopping centers and office towers.
Institutional Infrastructure: A reliable choice for university campuses, hospital wings, and government complexes where high-load stability is critical.
Complex Raceway Networks: The reduced surface contact of the twisted design makes it the superior choice for pulls involving multiple bends in heavy-wall PVC or rigid conduit.
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.
PRIORITY PART#: 350-03PPLEX-BOY
*All values are nominal and subject to correction. Ampacity is based on the National Electrical Code (NEC) for conductors in raceway or earth, adjusted for specific ambient conditions and fill factors as applicable.
| Wire Size (AWG/MCM) | 350 MCM |
| Conductor Material | Aluminum |
| Conductor Type | Stranded |
| Outer Diameter (OD) (in/mm) | 1.63 in. / 41.5 mm |
| Conductor Count | 3 |
| Shield | Unshielded |
| Insulation Type | XLPE |
| UL Listing Numbers | UL 44, UL 1685, UL 2557 |
| Voltage Rating | 600/1000V |
| Ampacity Rating | 280 |
| Submersible | No |
| Sunlight Resistance Rating | Yes |
| Temperature Rating | 90ºC |
| Standards | UL44/C22.2 No.38 UL 1685 UL 2556 ASTM B800 ASTM B801 |
| Miscellaneous Information | All values are nominal and subject to correction. Ampacities for aluminum conductors in raceway or cable based on an ambient temperature of 30°C per NEC Table 310.16 for 3 current carrying conductors |
| Primary Applications | Power Distribution, Feeder and Branch Circuits |
| Common Uses |
|
| Weight per Foot | 1.199 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 : PPLEX350-3-BOY
SKU : PPLEX350-3-BOY-250
Parent SKU : PPLEX350-3-BOY
SKU : PPLEX350-3-BOY-250
Purpose-built for high-leg delta or 480V commercial power systems, this 350 MCM Priority-Plex® twisted assembly is engineered to solve the physical and logistical challenges of high-amperage installations. By consolidating three large-gauge conductors into a single, factory-synchronized twist, this cable eliminates the friction and reel-management headaches typically associated with heavy industrial pulls, allowing your crew to finish the job with less equipment and lower risk.
When dealing with the significant weight of 350 MCM conductors, setup efficiency is paramount. The Priority-Plex® configuration transforms a traditionally difficult multi-reel pull into a streamlined, single-source operation. This significantly reduces the job site footprint and ensures the conductors stay in a stable, balanced geometry throughout the most aggressive conduit turns.
Friction-Reducing Pulling Geometry: The twisted architecture minimizes the total surface area in contact with the raceway, facilitating a much smoother glide than loose, parallel conductors.
480V Phase Identification: Features industry-standard Brown, Orange, and Yellow conductors for immediate circuit recognition in high-voltage industrial applications.
Extreme-Grade XHHW-2 Insulation: The cross-linked polyethylene (XLP) jacket is optimized for maximum heat dissipation, chemical resistance, and long-term moisture protection.
High-Performance AA-8000 Aluminum: Offers the necessary current-carrying capacity for heavy industrial services with a manageable weight profile that protects your team from excessive physical strain.
Conductor Size: 350 MCM (kcmil)
Number of Conductors: 3 (Twisted)
Color Code: Brown, Orange, Yellow
Ampacity: 250 Amps at 75°C / 280 Amps at 90°C (NEC Table 310.16)
Voltage: 600V
Insulation: Cross-linked Polyethylene (XLP), Type XHHW-2
Max Temp: 90°C (Wet/Dry)
Conductor Material: AA-8000 Series Aluminum Alloy
Standards: UL 44, UL 854, ASTM B800, B801, Federal Spec A-A-59544
Industrial High-Voltage Feeders: The primary solution for 480V motor control centers and heavy manufacturing equipment.
Commercial Distribution Hubs: Ideal for routing power from the main service entrance to large distribution panels in shopping centers and office towers.
Institutional Infrastructure: A reliable choice for university campuses, hospital wings, and government complexes where high-load stability is critical.
Complex Raceway Networks: The reduced surface contact of the twisted design makes it the superior choice for pulls involving multiple bends in heavy-wall PVC or rigid conduit.
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.
PRIORITY PART#: 350-03PPLEX-BOY
*All values are nominal and subject to correction. Ampacity is based on the National Electrical Code (NEC) for conductors in raceway or earth, adjusted for specific ambient conditions and fill factors as applicable.
| Wire Size (AWG/MCM) | 350 MCM |
| Conductor Material | Aluminum |
| Conductor Type | Stranded |
| Outer Diameter (OD) (in/mm) | 1.63 in. / 41.5 mm |
| Conductor Count | 3 |
| Shield | Unshielded |
| Insulation Type | XLPE |
| UL Listing Numbers | UL 44, UL 1685, UL 2557 |
| Voltage Rating | 600/1000V |
| Ampacity Rating | 280 |
| Submersible | No |
| Sunlight Resistance Rating | Yes |
| Temperature Rating | 90ºC |
| Standards | UL44/C22.2 No.38 UL 1685 UL 2556 ASTM B800 ASTM B801 |
| Miscellaneous Information | All values are nominal and subject to correction. Ampacities for aluminum conductors in raceway or cable based on an ambient temperature of 30°C per NEC Table 310.16 for 3 current carrying conductors |
| Primary Applications | Power Distribution, Feeder and Branch Circuits |
| Common Uses |
|
| Weight per Foot | 1.199 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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This 350 MCM, 3-conductor assembly is purpose-built for 480V industrial power distribution. The specific Brown, Orange, and Yellow color coding is the industry standard for identifying the three phases of a high-voltage system (277/480V). It is typically used to feed large industrial motors, commercial HVAC chillers, and heavy machinery where high-amperage, three-phase power is required without a neutral in the bundle.
Pulling 350 MCM wire in an industrial setting often involves complex conduit runs through factories and mechanical rooms. Priority-Plex® factory-twists the phases into a tight, helical bundle, providing two major advantages. First, the Anti-Phase Separation ensures that the phases stay together throughout the entire pull, simplifying identification at junction boxes and switchgear. Second, the Magnetic Field Cancellation provided by the helical arrangement helps minimize the electromagnetic field (EMF) generated by the cable, which can reduce interference with nearby sensitive control wiring or communication lines.
In high-voltage industrial applications, insulation failure is not an option. XHHW-2 features Cross-Linked Polyethylene (XLPE) insulation, which offers superior performance over standard PVC. It is a thermoset material that will not melt or deform if the motor experiences an overcurrent or if the conduit is located in a high-heat area. Additionally, XLPE provides exceptional Moisture and Chemical Protection, making it ideal for the demanding environments found in processing plants and refineries. It is significantly tougher and more abrasion-resistant than THHN, which is critical when pulling through long runs of rigid metal conduit.
According to NEC Table 310.16, the ampacity for 350 MCM Aluminum is determined by your termination temperature ratings. For 75°C Terminations, it is rated for 250 Amps, and for 90°C Terminations, it is rated for 280 Amps. Note that because all three conductors in this bundle (Brown, Orange, Yellow) are current-carrying phases, you must follow NEC 310.15(C)(1) adjustment factors if you plan to run multiple 3-phase circuits in the same conduit or cable tray to avoid overheating.
Handling 350 MCM requires proper planning for both space and mechanical force. To comply with the 40% fill rule, a 3-inch conduit is generally the minimum recommended for a 3-conductor 350 MCM twisted pull. The 8000-series aluminum alloy used in this cable is designed for maximum ductility, allowing it to be trained into tight switchgear cabinets more easily than older, stiffer aluminum wire. Always ensure that all lugs are rated for AL9CU and that a calibrated torque wrench is used to reach the manufacturer’s specified tension, preventing hot spots at the connection points.
Yes we offer XHHW-2 Aluminum Wire in a single conductor from 14 AWG to 1000 MCM in multiple colors by the foot.
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