336.4 MCM Triplex Aluminum Overhead Service Drop Cable (Limpet)

"The industry standard for maximum-capacity 600V single-phase overhead utility drops, heavy commercial service entrances, and primary temporary power distribution requiring 19-strand phase conductors and a full-size neutral messenger. Engineered for dependable 600V aerial power delivery from utility lines to building weatherheads, this 3-conductor triplex cable features two 336.4 MCM insulated aluminum phase conductors, heavy-duty weather-resistant XLP insulation, and a matching bare 336.4 MCM steel-reinforced ACSR neutral messenger built to withstand extreme environmental strain."

Key Features & Benefits: 336.4 MCM Triplex Overhead Service Drop Cable

The 336.4 MCM Limpet Triplex Cable is designed for industrial and commercial-grade overhead secondary power distribution requiring maximum ampacity and a full-size neutral conductor to handle heavy unbalanced loads or utility specifications. Designed to span long overhead distances from utility pole transformers to service masts, it provides a high-capacity, sag-resistant solution for heavy-duty service drops and temporary construction power feeds.

By pairing two 19-strand 1350-H19 series 336.4 MCM aluminum phase conductors with a heavy-duty 336.4 MCM 18/1 ACSR neutral messenger, Limpet triplex delivers 420-amp capacity with 8,680 lbs of mechanical break strength. The extra-thick 80-mil cross-linked polyethylene (XLP) insulation offers superior protection against severe UV rays, freezing rain, and harsh industrial environments.

• 600V Heavy Industrial Aerial Reliability: Rated for continuous 600V max aerial service at conductor temperatures up to 90°C with XLP insulation.

• Full-Size 18/1 ACSR Messenger: Features a matching 336.4 MCM steel-reinforced ACSR neutral messenger delivering 8,680 lbs of breaking strength to prevent sag and withstand severe ice, wind, and extreme span loads.

• Extra-Thick 80-Mil Weather-Resistant XLP: Heavy-duty black cross-linked polyethylene insulation prevents UV degradation, cracking, and moisture damage in severe outdoor environments.

• Cut to Length by the Foot: Order only the exact span length needed for your project, eliminating jobsite waste and unused spools.

Technical Specifications: Limpet 336.4 MCM Triplex Overhead Cable

• Application: Overhead secondary power drops (600V max) from utility pole to weatherhead, heavy commercial service feeds, and primary temporary jobsite power.

• Code Word: Limpet.

• Voltage Rating: 600 Volts Maximum (Phase-to-Phase).

• Phase Conductors Size & Stranding: Two (2) 336.4 MCM (19-strand 1350-H19 Series Aluminum).

• Neutral Messenger Size & Stranding: One (1) 336.4 MCM ACSR Full-Size Neutral (18 Aluminum / 1 Steel Strand).

• Messenger Breaking Strength: 8,680 lbs.

• Insulation Material: Black Cross-Linked Polyethylene (XLP).

• Insulation Thickness: 0.080 inches (2.03 mm).

• Nominal Outer Diameter: 1.72 inches.

• Approximate Cable Weight: 1,161 lbs per 1,000 ft.

• Ampacity (90°C XLP Conductor): 420 Amps.

• Ampacity (75°C Poly Conductor): 325 Amps.

• Compliance & Standards: ASTM B-230, ASTM B-231, ASTM B-232, ICEA S-76-474, RUS Accepted.

Common 336.4 MCM Limpet Triplex Overhead Applications

• High-Capacity Commercial Service Drops: Single-phase power runs from utility pole transformers to commercial weatherheads, industrial subpanels, or large agricultural service entrances requiring up to 400A service with a full neutral.

• Heavy-Duty Temporary Construction Power: Overhead power delivery for massive jobsite temporary service poles and main distribution switchgear.

• Industrial & Agricultural Facilities: Aerial power supply to heavy workshops, barns, manufacturing facilities, and outbuildings.
  

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.

Ampacity Reference: Based on conductor temperature of 90°C for XLP (75°C for Poly), 40°C ambient temperature, 0.9 emissivity, and 2 ft/sec wind in full sun. Reference applicable NEC articles for site-specific installation guidelines.

General Shipping Information

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 Shipping

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).

Returns

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.