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Parent SKU : ALURDWB-35K-500-1/3
SKU : ALURDWB-35K-500-1/3-250
"Maximum ampacity for utility-scale primary power—engineered with tree-retardant XLPE and dual-layer water blocking for superior grid reliability in 35kV super-feeder circuits."
The 500 MCM 35kV URD cable is the definitive choice for high-density primary power distribution. Engineered to handle massive current loads, this cable is the industry standard for substation-to-grid interconnects and heavy industrial primary services where reliability cannot be compromised.
Dual-Layer Water Block Protection: Moisture is the single greatest threat to high-capacity 35kV lines. This cable is manufactured with water-blocking compounds in the conductor core and water-swellable agents in the neutral layer, ensuring a total longitudinal seal against water ingress.
Tree-Retardant XLPE (TR-XLPE): The 345-mil insulation wall utilizes premium TR-XLPE to inhibit "water treeing." This is critical for 500 MCM runs, as the heat generated by high current loads can accelerate insulation degradation in damp environments without this protection.
1/3 Concentric Neutral: Featuring 16 x #12 AWG annealed bare copper wires, the 1/3 neutral configuration provides a massive ground-fault return path while shielding the core from external electrical stress.
High-Strength 1350-H19 Aluminum: The aluminum core is designed to withstand the massive mechanical tension required to pull heavy-gauge 500 MCM cable through long primary duct banks.
Substation Exit Feeders: Carrying the primary load from utility substations into the main underground distribution network.
Utility-Scale Renewables: Serving as the main collector cable for large wind farms and utility-scale solar arrays.
Critical Infrastructure Power: Providing primary service to hospitals, data centers, and major municipal pumping stations.
ENGINEERING OVERVIEW: 500 MCM SUPER-FEEDER DISTRIBUTION The 500 MCM 35kV URD cable is optimized for primary distribution applications requiring the highest available ampacity and long-term environmental resilience. With a robust nominal outer diameter of approximately 2.02", this cable is built for heavy-duty performance in direct burial or primary duct installations.
APPLICATION: Aluminum Conductor MV-105 35kV water-blocked URD cable is primarily used for primary underground power distribution. It is suitable for use in wet or dry locations, installed in underground ducts or via direct burial.
CONDUCTORS: 500 MCM (500 kcmil) Compact or compressed aluminum 1350-H19 in Class B stranding.
CONDUCTOR WATER BLOCK: Water block compound filled conductor or water swellable tape over the conductor.
INSULATION: TR-XLPE (Tree-Retardant Cross-Linked Polyethylene) in 100% insulation level (345 Mils).
CONCENTRIC NEUTRAL WATER BLOCK: Semi-conducting water-swellable tape over the insulation shield or water-swellable powder between the concentric neutral strands.
CONCENTRIC NEUTRAL: 16 x #12 AWG Annealed bare copper wires (1/3 neutral conductivity).
JACKET: Sunlight resistant XLPE, black with three red stripes for easy high-voltage phase identification.
INDUSTRY STANDARDS & COMPLIANCE:
UL 1072: Listed as Type MV-105
ICEA S-94-649: Concentric Neutral Cables Rated 5 through 46kV
AEIC CS8: Shielded Power Cables Rated 5 through 46kV
Temperature Ratings: 105°C (Normal), 140°C (Emergency), 250°C (Short Circuit)
CABLE MARKING: PRIORITY WIRE AL TR-XLPE 35KV 100% INSUL LEVEL 345 MILS (UL) E364254 TYPE MV-105 XLPE WB SUN RES.
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.
| Wire Size (AWG/MCM) | 500 MCM |
| Conductor Material | Aluminum |
| Conductor Type | Stranded |
| Outer Diameter (OD) (in/mm) | 2.02 in. / 51.31 mm |
| Jacket Type | XLPE |
| Conductor Count | 1 |
| Shield | Shielded |
| Insulation Type | TR-XLPE |
| UL Listing Numbers | UL 1072 |
| Voltage Rating | 35kV |
| Direct Burial Rating | Yes |
| Submersible | No |
| Sunlight Resistance Rating | Yes |
| Temperature Rating | 105ºC |
| Standards | ASTM B230 Aluminum 1350–H19 Wire for Electrical Purposes ASTM B231 Concentric-Lay-Stranded Aluminum 1350 Conductors ASTM B400 Compact Round Concentric-Lay-Stranded Aluminum 1350 Conductors ASTM B3 Soft or Annealed Copper Wire UL 1072 Medium-Voltage Power Cables ICEA S-94-649 Concentric Neutral Cables Rated 5 Through 46KV AEIC CS8 Extruded Dielectric, Shielded Power Cables Rated 5 Through 46KV For 105°C continuous, 140°C emergency overload and 250°C short-circuit operation |
| Miscellaneous Information | All values are nominal and subject to correction. |
| Weight per Foot | 1.888 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.
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Physical Specifications
Technical Specifications
Packaging & Dimensions:
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Under standard conditions (90°C conductor, 20°C earth temperature, and 90 RHO soil resistivity):
⚠️ CUSTOMER WARNING: Actual ampacity must be calculated based on your specific project conditions, including soil thermal resistivity (RHO), burial depth, duct bank configuration, and load factor per NEC Article 311. Consult a licensed electrical engineer for final system design.
Because this cable is designed for direct burial, it is constantly exposed to ground moisture. The water block technology uses swellable agents within the conductor strands. If the jacket is ever breached, these agents expand to create a physical dam, preventing water from traveling down the cable and causing "water treeing"—microscopic cracks in the insulation that eventually lead to failure.
A 1/3 neutral means the copper concentric wires have a cross-sectional area equal to one-third of the 500 MCM aluminum conductor. This is the industry standard for three-phase systems with balanced loads. It ensures there is enough copper to handle fault currents without the unnecessary weight and cost of a full neutral.
Maintaining a proper bend radius is vital to prevent internal damage to the 35kV insulation layers:
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