Description

Technical Parameters

Certification

750kcmil Copper XHHW/XHHW-2 Wire

PRODUCT REAL SHOT

750kcmil Class C Stranded Copper XHHW-2 Wire

750kcmil XHHW-2 copper wire bending radius

750 kcmil – Uncompromising Power Delivery for Extreme Loads

When standard large conductors are not enough, 750 kcmil XHHW/XHHW-2 provides the next level of power capacity for the most demanding industrial applications. Engineered with high-conductivity pure copper conductors (solid or stranded) and XLPE cross-linked polyethylene insulation, and certified to UL 44 standards. Rated for 600V, 1000V, and 2000V systems. XHHW-2 insulation delivers reliable 90°C performance in both dry and wet environments, withstanding heat, moisture, and chemical exposure for long-term durability. This wire is the choice for heavy industrial switchgear feeders, power plant auxiliary system connections, large arc furnace power runs, and substation distribution. It provides the backbone for mission-critical power infrastructure in the most demanding settings. Designed for installation in conduit, tray, or other approved raceway systems.

PRODUCT SPECIFICATIONS

750kcmil UL 44 Thermoset Insulated Wire XHHW-2

Size(AWG/Kcmil)	Strands No./OD. (mm)	XLPE Insulation Average Thickness (mm)	Approx. O.D. (mm)	Max.DC Resistance (20°C, Ω/km) (Bare Copper)	Max.DC Resistance (20°C, Ω/km) (Tinned Copper)	Approx. Weight (kg/km)
250	37/2.09	1.65	18.09	0.142	0.147	1236.75
300	37/2.29	1.65	19.49	0.118	0.122	1475.07
350	37/2.47	1.65	20.75	0.101	0.105	1707.60
400	37/2.64	1.65	21.94	0.0885	0.0911	1942.91
500	37/2.95	1.65	24.11	0.0709	0.0729	2411.26
750	61/2.82	2.03	29.64	0.0472	0.0486	3633.46
1000	61/3.25	2.03	33.51	0.0354	0.0364	4793.24

CERTIFICATIONS

XHHW-2 Wire UL 44 Standard

PACKAGING

Roll

Small Wooden Reel

Large Wooden Reel

APPLICATION

Circuit Wiring

Underground Conduit Installation

Cable Tray Raceway Systems

CASE

Mayo Clinic Hospital Saint Marys Campus

Tesla Gigafactory Texas

30 Hudson Yards

WHY CHOOSE US

30Years of experience
in one-stop service

Dongguan Greater Wire & Cable Co., Ltd. is a professional engineering-grade cable manufacturer in China, supplying certified electrical cable solutions for building, industrial, mining, energy, and infrastructure projects worldwide.

With a 30,000 m² factory, 30 production lines, experienced engineers, and a strict quality control team, we provide reliable, traceable, and compliant cable products for international engineering applications. Our products are supported by certifications including SAA, UL, cUL, VDE, TÜV, CE, CB, IEC, BPS, and ISO.

We are committed to safety, quality, transparency, and long-term partnership. From raw material inspection to finished product testing, every batch is carefully controlled to ensure stable performance and dependable project use.

Greater Cable - Certified Quality. Reliable Supply. Engineering Value.

Spacious Modern Electric Wire Production Base Outdoor Shot of Dongguan Greater Wire

15K

Finished Projects

150+

professional staff

15K

happy clients

92+

awards & certifacates

PLANT EQUIPMENT

Full Automatic Power Cable Forming Workshop Equipment

Standalone Cable Cabling Take-Up Machine Unit

Multi-Reel Copper Conductor Preprocessing Equipment

Full Automatic Insulation Coating Machine Group

Multi-Core Cable Cage Type Forming Machinery

Dongguan Greater Wire Copper Wire Pre-Treatment Machine

GLOBAL CERTIFICATIONS

Worldwide Approved Electric Cable Certification Wall

CUSTOMER PHOTOS

Global Copper Cable Long-Term Partner Meeting Showcase

INTERNATIONL TRANSPORTATION

Sea Freight

We offer reliable sea freight solutions for large-volume orders. Your goods are securely packed and shipped in containers, ensuring cost-effective delivery to ports worldwide.

Air Freight

For faster delivery, our air freight service ensures your products reach international destinations quickly, with careful handling and full tracking along the way.

International Express

Need urgent shipments? Our international express service delivers small to medium orders efficiently, providing door-to-door service with real-time tracking for peace of mind.

Sea Truck Air Combined Logistics for Overseas Cable Supply

COOPERATIVE PARTNER

We are looking for a cooperative partner to expand our business.

Streams Trusted Global Cooperation Client

Strategiya Sveta Cross-border Business Collaborator

ladybird Reliable Foreign Cooperation Firm

NOTABLE Global Sourcing Partner Enterprise

Hiknow Reliable Foreign Cooperation Firm

SinoKing Overseas Cooperative Enterprise

How To Cooperate With Us?

Simply share your requirements, receive our professional solution, confirm samples, and enjoy fast, reliable production and worldwide delivery - working with us is that easy.

Our address

Building 2, No. 40 Luxi 2nd Road, Liaobu Town, Dongguan City, Guangdong Province, China

Phone Number

+86 136 6257 9592

+86 135 1078 4550

E-mail

manager01@greaterwire.com

Business Partners Hand Stack Trust Building Photo

FAQ

What kind of projects typically require 750 kcmil?

Projects with extreme power density – heavy industrial plants, data centers, large arc furnaces, power generation stations, and main substation feeders where smaller gauges cannot meet the current demand.

How does 750 kcmil compare to using two smaller parallel runs?

A single 750 kcmil run eliminates the complications of paralleling – no current imbalance concerns, fewer terminations, and less tray space occupied, though it requires larger conduit and bending radius.

What are the installation challenges with 750 kcmil?

This is a high-capacity conductor requiring careful handling. Larger bending radius, proper pulling equipment, and adequate termination space are essential. Stranded construction provides necessary flexibility.

How does XHHW-2 insulation benefit extreme-power applications?

XHHW-2's cross-linked construction resists heat buildup from high current flow and maintains performance in hot, damp, or chemically aggressive industrial environments.

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