AL THW

Aluminum THW 600V Building Wire

PRODUCT DESCRIPTION

AL THW is a 600V aluminum single-conductor building wire designed for power distribution, feeder, branch circuit, lighting, and general-purpose electrical wiring applications.

The cable features an electrical-grade aluminum conductor insulated with durable thermoplastic insulation. THW construction is suitable for use in both wet and dry locations, with a typical maximum conductor operating temperature of 75°C.

Its lightweight aluminum conductor provides an economical and practical alternative to copper for commercial, residential, industrial, and utility electrical systems when properly sized and installed according to applicable electrical codes.

APPLICATIONS

• Residential building wiring

• Commercial electrical installations

• Industrial power distribution

• Feeder circuits

• Branch circuits

• Lighting circuits

• Motor circuits

• Electrical panels and switchboards

• Distribution boards

• Conduit and raceway systems

• Cable trays where permitted

• Wet and dry locations

• Indoor and outdoor wiring systems where permitted

• Utility and infrastructure projects

STANDARDS & COMPLIANCE

Typical reference standards include:

• UL 83 — Thermoplastic-Insulated Wires and Cables

• ASTM B230/B230M — Aluminum Wire, 1350-H19

• ASTM B231/B231M — Concentric-Lay-Stranded Aluminum 1350 Conductors

• NFPA 70 / NEC — National Electrical Code

• Applicable local electrical codes and installation requirements

Final certification and construction depend on conductor size, insulation system, manufacturing configuration, and the requirements of the destination market.

CONSTRUCTION

1. Conductor

• Material: Electrical-grade aluminum

• Typical alloy: Aluminum 1350 series

• Construction: Solid or stranded

• Stranding: Concentric-lay stranded for larger conductor sizes

• Surface: Smooth and clean

• Conductor design optimized for electrical conductivity and installation performance

2. Insulation

• Material: Thermoplastic insulation

• Insulation type: THW

• Rated voltage: 600V

• Maximum conductor operating temperature: 75°C

• Location rating: Wet and dry locations

3. Color Identification

Standard insulation colors may include:

• Black

• White

• Red

• Blue

• Green

• Brown

• Orange

• Gray

Other colors are available according to customer requirements.

TECHNICAL DATA

TYPICAL CONDUCTOR SIZES

Typical available sizes include:

Other sizes and conductor constructions can be manufactured according to project specifications.

ELECTRICAL CHARACTERISTICS

Rated Voltage

600V

Conductor Conductivity

The aluminum conductor is designed to provide reliable electrical conductivity while reducing overall conductor weight compared with equivalent copper constructions.

Ampacity

Allowable ampacity depends on:

• Conductor size

• Ambient temperature

• Number of current-carrying conductors

• Installation method

• Raceway configuration

• Terminal temperature rating

• Applicable NEC requirements

Final ampacity shall be determined according to the actual installation conditions and applicable electrical codes.

THERMAL PERFORMANCE

The THW insulation system is designed for continuous conductor operation within its specified temperature rating.

MECHANICAL PERFORMANCE

AL THW is designed for fixed electrical installations and provides:

• Good handling characteristics

• Low conductor weight

• Good resistance to normal installation stresses

• Reliable insulation integrity

• Suitable flexibility for conduit installation

• Clear conductor identification

• Stable performance under normal service conditions

The cable should be protected from excessive pulling tension, sharp edges, crushing, and bending beyond the manufacturer's recommended limits.

INSTALLATION

AL THW may be installed in approved:

• Conduits

• Raceways

• Electrical panels

• Switchboards

• Distribution equipment

• Cable trays where permitted

• Other wiring systems recognized by the applicable electrical code

Installation should comply with the National Electrical Code (NEC) and applicable local regulations.

Aluminum conductors must be terminated using connectors, terminals, lugs, and installation practices specifically approved for aluminum conductors.

Proper preparation, torque, and termination procedures are important for long-term electrical reliability.

KEY FEATURES

• 600V rated

• 75°C wet and dry

• Electrical-grade aluminum conductor

• Thermoplastic THW insulation

• Suitable for wet and dry locations

• Lightweight compared with equivalent copper conductors

• Wide range of AWG and kcmil sizes

• Suitable for commercial, residential, industrial, and utility applications

• Multiple insulation colors available

• Suitable for conduit and raceway systems

• Custom configurations available

PRODUCT ADVANTAGES

Lightweight

Aluminum conductors provide significant weight savings compared with equivalent copper conductors, making transportation and installation easier.

Cost-Effective

AL THW provides an economical solution for feeder, branch circuit, and power distribution applications.

Versatile

The 75°C wet/dry temperature rating allows AL THW to be used across a wide range of approved wiring environments.

Wide Size Range

The product can be supplied in various AWG and kcmil sizes for different electrical load requirements.

Reliable Insulation

Thermoplastic THW insulation provides dependable electrical insulation and mechanical protection under normal operating conditions.

QUALITY CONTROL

Typical quality-control procedures may include:

• Conductor resistance testing

• Conductor diameter inspection

• Stranding inspection

• Insulation thickness measurement

• High-voltage testing

• Spark testing

• Insulation integrity testing

• Dimensional inspection

• Marking verification

• Finished product visual inspection

Additional testing can be provided according to customer specifications and applicable certification requirements.

PACKAGING

AL THW can typically be supplied in:

• Coils

• Plastic reels

• Wooden reels

• Wooden drums

• Export-grade packaging

Packaging length, reel dimensions, labeling, and identification markings can be customized according to project and shipping requirements.

CUSTOMIZATION

Available options may include:

• Conductor size

• Solid or stranded construction

• Insulation color

• Conductor marking

• Printing requirements

• Standard package length

• Reel or drum configuration

• Private-label marking

• Project-specific technical specifications

FAQ

What is AL THW?

AL THW is a 600V aluminum single-conductor building wire with thermoplastic THW insulation, designed for general electrical wiring and power distribution applications.

What does THW mean?

THW identifies a thermoplastic-insulated wire construction designed for a maximum conductor operating temperature of 75°C in both wet and dry locations.

What is the voltage rating of AL THW?

The standard voltage rating is 600V.

Can AL THW be used in wet locations?

Yes. THW construction is intended for use in wet and dry locations, subject to the specific product marking and applicable installation requirements.

What is the difference between AL THW and AL THHW?

The primary temperature-rating distinction is that THW is typically rated 75°C wet/dry, while THHW is typically rated 90°C dry and 75°C wet. The appropriate product should be selected according to the required installation conditions and applicable code.

Is aluminum suitable for feeder applications?

Yes. Aluminum conductors are widely used in feeder and distribution systems when properly sized and terminated using equipment approved for aluminum conductors.

Can AL THW be installed in conduit?

Yes. AL THW is commonly installed in approved conduit and raceway systems in accordance with applicable electrical codes.

What sizes are available?

Typical sizes range from 14 AWG to 1000 kcmil, with other sizes available for specific projects.

Can the insulation color be customized?

Yes. Standard and custom insulation colors can be supplied according to project requirements.

Can AL THW be used outdoors?

Outdoor use depends on the complete product construction, markings, installation method, and applicable electrical code. The specific product should be verified for the intended outdoor application.

Is AL THW lighter than copper wire?

Yes. Aluminum has a lower density than copper, resulting in significantly lower conductor weight for comparable electrical applications. Proper conductor sizing is required to achieve the necessary ampacity.

SEO INFORMATION

SEO Product Title:
AL THW 600V Aluminum Building Wire | 75°C Wet & Dry

Short Description:
AL THW is a 600V aluminum building wire with thermoplastic insulation and a 75°C wet/dry temperature rating for residential, commercial, industrial, and power distribution applications.

Meta Description:
600V AL THW aluminum building wire with thermoplastic insulation and 75°C wet/dry rating. Available in AWG and kcmil sizes for feeders, branch circuits, conduit and power distribution.

Product Image Title:
AL THW 600V Aluminum Building Wire

Image Alt Text:
AL THW 600V aluminum thermoplastic insulated building wire

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