CU XHHW, UL Cables Copper CU XHHW 600V XLPE Thermoset Wire for Electrical Panels Switchboards Motor Connections and Control Systems

CU XHHW

600V Copper XLPE Thermoset Building Wire

PRODUCT DESCRIPTION

CU XHHW is a 600V copper building wire designed for electrical power distribution, commercial buildings, industrial facilities, control systems, and general-purpose wiring installations. It features an annealed copper conductor with cross-linked polyethylene (XLPE) thermoset insulation, providing excellent electrical performance, thermal stability, moisture resistance, and mechanical durability.

CU XHHW is rated for 90°C in dry locations and 75°C in wet locations, making it suitable for a broad range of indoor and outdoor electrical installations where the applicable electrical code permits its use.

The XLPE insulation provides excellent resistance to heat, moisture, abrasion, and common environmental stresses while maintaining reliable dielectric performance throughout the service life of the cable.

APPLICATIONS

CU XHHW is suitable for:

• Commercial and residential building wiring

• Industrial power distribution

• Electrical panels and switchboards

• Motor and equipment connections

• Control and power circuits

• Conduit and raceway systems

• Cable trays where permitted

• Service and feeder circuits

• Lighting and branch circuits

• Industrial machinery

• Power distribution systems

• Dry and wet locations within the applicable temperature rating

• Outdoor installations where permitted

• Underground raceways and electrical distribution systems where permitted

STANDARDS & COMPLIANCE

Typical reference standards include:

• UL 44 — Thermoset-Insulated Wires and Cables

• ASTM B3 — Soft or Annealed Copper Wire

• ASTM B8 — Concentric-Lay-Stranded Copper Conductors

• NFPA 70 / NEC — National Electrical Code, where applicable

• Applicable national and local electrical installation requirements

Final certification, markings, conductor construction, insulation thickness, and permitted applications depend on the specific product construction and destination-market requirements.

CONSTRUCTION

1. Conductor

• Material: Annealed copper

• Conductor type: Solid or stranded, depending on size and application

• Stranding: Concentric-lay stranded construction for larger sizes

• High electrical conductivity

• Excellent flexibility and termination performance

• Suitable for copper-rated electrical connectors and terminals

2. Insulation

• Material: Cross-Linked Polyethylene (XLPE)

• Insulation type: Thermoset

• Color: Black, red, blue, white, green, yellow, or other colors as specified

• Excellent dielectric strength

• High thermal stability

• Good resistance to moisture and environmental stress

3. Surface Identification

The wire may be identified by:

• Surface printing

• Sequential footage marking where required

• Manufacturer identification

• Product designation

• Voltage rating

• Temperature rating

• Applicable certification markings

TECHNICAL DATA

TYPICAL AVAILABLE CONDUCTOR SIZES

Other conductor sizes, stranding classes, insulation colors, and constructions can be manufactured according to project requirements.

ELECTRICAL CHARACTERISTICS

CU XHHW provides reliable electrical performance for low-voltage power distribution and building-wiring applications.

Key electrical characteristics include:

• Rated voltage: 600 V

• High-conductivity annealed copper conductor

• Low electrical resistance

• Stable insulation dielectric properties

• Excellent insulation resistance

• Suitable for AC electrical distribution systems

• Compatible with standard copper-rated electrical termination systems

The allowable ampacity shall be determined according to conductor size, installation method, ambient temperature, number of current-carrying conductors, and the applicable electrical code.

THERMAL PERFORMANCE

CU XHHW is designed for:

• 90°C maximum conductor temperature in dry locations

• 75°C maximum conductor temperature in wet locations

The 90°C dry rating provides increased thermal capacity compared with conventional 75°C building wires, while the 75°C wet rating allows use in appropriately approved wet-location installations.

Actual operating temperature shall comply with the applicable electrical code, equipment limitations, termination ratings, and installation conditions.

MOISTURE RESISTANCE

The XLPE thermoset insulation provides good resistance to moisture and water exposure.

CU XHHW is suitable for wet-location applications where the product is properly marked and certified for such use and where permitted by the applicable electrical code.

The wet-location temperature rating is typically 75°C.

MECHANICAL PERFORMANCE

CU XHHW offers:

• Good tensile strength

• Good abrasion resistance

• Good flexibility, particularly in stranded constructions

• Resistance to installation-related mechanical stress

• Stable insulation integrity during pulling and routing

• Reliable performance in conduit and raceway installations

Stranded conductors are recommended for applications requiring easier handling and installation, particularly for larger conductor sizes.

ENVIRONMENTAL PERFORMANCE

The XLPE insulation provides resistance to:

• Moisture

• Heat

• Abrasion

• Aging

• Common industrial environmental stresses

• Outdoor environmental exposure when permitted

• Normal installation-related mechanical stress

For severe chemical, oil, sunlight, flame, or other special environments, the final construction should be selected according to the applicable certification and project requirements.

INSTALLATION

CU XHHW may be installed in:

• Conduit

• Raceway

• Electrical cabinets

• Panelboards

• Switchboards

• Cable trays where permitted

• Equipment wiring systems

• Commercial and industrial distribution systems

• Wet or dry locations within the applicable rating

Installation should comply with:

• NFPA 70 / NEC, where applicable

• Local electrical codes

• Equipment manufacturer requirements

• Approved conductor ampacity tables

• Proper conductor bending radius

• Proper pulling tension

• Approved termination methods

For copper conductors, use connectors, lugs, terminals, and accessories specifically approved for copper conductors.

KEY FEATURES

• 600V rated construction

• Annealed copper conductor

• XLPE thermoset insulation

• 90°C dry temperature rating

• 75°C wet temperature rating

• Excellent electrical conductivity

• Good moisture resistance

• Good thermal stability

• Good mechanical durability

• Suitable for commercial and industrial applications

• Available in solid and stranded constructions

• Wide range of conductor sizes

• Multiple insulation colors available

PRODUCT ADVANTAGES

Reliable Copper Conductivity

The annealed copper conductor provides excellent electrical conductivity and dependable current-carrying performance.

XLPE Thermoset Insulation

Cross-linked polyethylene provides enhanced thermal and mechanical performance compared with conventional thermoplastic insulation.

Dual Wet/Dry Capability

The XHHW designation provides a 90°C dry / 75°C wet temperature rating, allowing the product to serve a wider range of electrical installation environments.

Broad Application Range

CU XHHW can be used across commercial, industrial, residential, and infrastructure projects where the applicable electrical code permits its use.

Flexible Product Configuration

Available in different conductor sizes, constructions, colors, and marking configurations to meet project-specific requirements.

CU XHHW VS. RELATED WIRE TYPES

The actual allowable application depends on the product marking, certification, installation method, and applicable electrical code.

QUALITY CONTROL

Typical manufacturing and inspection procedures may include:

• Conductor dimensional inspection

• Conductor resistance testing

• Conductor diameter and stranding inspection

• Insulation thickness measurement

• Insulation eccentricity inspection

• Spark testing

• High-voltage testing

• Tensile and elongation testing

• Aging and thermal performance testing

• Finished-product dimensional inspection

• Marking and identification verification

Production controls can be adapted to applicable UL, ASTM, CSA, customer, and project specifications.

PACKAGING

Typical packaging options include:

• Coils

• Plastic reels

• Wooden reels

• Export-grade wooden drums

• Customized reel lengths

• Customer-specified labeling

• Project-specific packaging

Packaging configuration can be optimized according to conductor size, shipping method, destination, and installation requirements.

CUSTOMIZATION

Available options may include:

• Conductor size

• Solid or stranded construction

• Conductor stranding configuration

• Insulation color

• Printing and marking

• Sequential length marking

• Reel length

• Packaging method

• Customer-specific technical specifications

• Destination-market certification requirements

TECHNICAL SUPPORT

Technical documentation can be supplied according to project requirements, including:

• Product datasheets

• Technical specifications

• Construction drawings

• Conductor resistance data

• Ampacity information

• Routine test reports

• Type-test documentation where applicable

• Material declarations

• Compliance documentation

• Customized technical submittals

FAQ

1. What is CU XHHW?

CU XHHW is a 600V copper building wire using annealed copper conductors and XLPE thermoset insulation. It is typically rated 90°C dry and 75°C wet.

2. What is the difference between XHHW and XHHW-2?

The primary temperature-rating difference is the wet-location rating. XHHW is typically 90°C dry / 75°C wet, while XHHW-2 is typically 90°C dry / 90°C wet.

3. What is the difference between XHH and XHHW?

XHH is primarily intended for dry-location applications unless additionally marked or certified for wet locations. XHHW provides a defined wet-location rating, typically 75°C.

4. Is CU XHHW suitable for wet locations?

Yes, when the specific product is properly marked and certified for wet-location use. The typical wet-location conductor temperature rating is 75°C.

5. Is CU XHHW suitable for outdoor applications?

It may be used in outdoor installations when the specific construction and certification permit outdoor exposure and the installation complies with applicable electrical codes.

6. Is CU XHHW suitable for conduit and raceway systems?

Yes. CU XHHW is commonly used in conduit and raceway systems for commercial, industrial, and building electrical installations.

7. What conductor material is used?

CU XHHW uses high-conductivity annealed copper conductors.

8. Is CU XHHW available in stranded construction?

Yes. Stranded construction is commonly available, particularly for medium and large conductor sizes.

9. What voltage is CU XHHW rated for?

The standard product configuration is rated at 600 volts.

10. What sizes are available?

Typical sizes range from 14 AWG through 1000 kcmil, with additional sizes available according to project requirements.

11. Can CU XHHW be used instead of XHHW-2?

Not automatically. XHHW and XHHW-2 have different wet-location temperature ratings. The selected wire must match the installation conditions and applicable electrical code requirements.

12. Can customized CU XHHW be manufactured?

Yes. Conductor size, stranding, insulation color, printing, reel length, packaging, and other technical requirements can be customized subject to production and certification requirements.

SEO INFORMATION

SEO Product Title:
CU XHHW 600V Copper XLPE Building Wire | 90°C Dry / 75°C Wet

Short Description:
CU XHHW is a 600V copper building wire featuring annealed copper conductors and XLPE thermoset insulation, rated 90°C dry and 75°C wet for commercial, industrial, and electrical distribution applications.

Meta Description:
CU XHHW 600V copper building wire with XLPE thermoset insulation, 90°C dry and 75°C wet rating. Available in multiple AWG and kcmil sizes.

Suggested URL Slug:
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Product Image Title:
CU XHHW 600V Copper XLPE Building Wire

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CU XHHW 600V copper building wire with XLPE thermoset insulation