AL THHN

Aluminum THHN 600V Building Wire

PRODUCT DESCRIPTION

AL THHN is a single-conductor aluminum building wire designed for general-purpose electrical wiring, feeder circuits, branch circuits, and power distribution systems.

The cable features a stranded aluminum conductor with thermoplastic insulation and a durable nylon jacket. The THHN construction provides good electrical performance, mechanical durability, moisture resistance, and installation flexibility.

AL THHN is suitable for use in raceways, conduits, cable trays, and other approved wiring systems for commercial, residential, industrial, and institutional electrical installations.

Typical Voltage Rating: 600 V
Conductor: Aluminum
Insulation: Thermoplastic PVC
Jacket: Nylon
Maximum Conductor Operating Temperature: 90°C Dry

APPLICATIONS

AL THHN is designed for:

• Commercial building wiring

• Residential electrical installations

• Industrial power distribution

• Feeder circuits

• Branch circuits

• Lighting circuits

• Motor circuits

• Control panels

• Distribution panels

• Switchgear connections

• Electrical equipment wiring

• Raceway and conduit systems

• Cable tray installations where permitted

• Indoor electrical installations

• Dry-location applications

• General-purpose building wiring

STANDARDS & COMPLIANCE

The cable can be manufactured to applicable North American requirements according to the final construction and certification configuration.

Typical reference standards include:

• UL 83 — Thermoplastic-Insulated Wires and Cables

• ASTM B230 — Aluminum Wire

• ASTM B231 — Aluminum Conductors, Concentric-Lay-Stranded

• NFPA 70 — National Electrical Code (NEC)

• Applicable local electrical codes and project specifications

Typical Voltage Rating: 600 V
THHN Temperature Rating: 90°C Dry

Final construction, certification, temperature rating, conductor size, and installation requirements shall be confirmed according to the applicable standard and project specification.

CONSTRUCTION

1. Aluminum Conductor

The conductor is manufactured from electrical-grade aluminum and may be supplied in stranded concentric-lay construction.

Aluminum provides:

• Good electrical conductivity

• Reduced cable weight

• Efficient material utilization

• Good installation flexibility

• Cost-effective power distribution

Compact stranded construction can be provided for selected sizes to reduce overall conductor diameter.

2. Thermoplastic Insulation

A flame-retardant thermoplastic insulation layer provides electrical insulation around the aluminum conductor.

The insulation provides:

• Good dielectric strength

• Moisture resistance

• Mechanical protection

• Thermal stability

• Good resistance to common installation conditions

3. Nylon Jacket

A thin, durable nylon jacket is applied over the insulation.

The nylon jacket provides:

• Abrasion resistance

• Improved mechanical protection

• Resistance to oils and common chemicals

• Reduced friction during installation

• Improved surface durability

TECHNICAL DATA

TYPICAL CONDUCTOR SIZES

Typical aluminum conductor sizes include:

Other conductor sizes can be manufactured according to project requirements.

ELECTRICAL CHARACTERISTICS

Conductor Performance

The aluminum conductor provides an efficient solution for general electrical distribution while reducing overall cable weight compared with equivalent copper conductors.

Conductor resistance is controlled according to the applicable conductor standard and specified conductor size.

Insulation Performance

The thermoplastic insulation provides stable electrical performance under normal operating conditions and is suitable for general building-wire applications.

Voltage Performance

The cable is typically rated for 600 V electrical systems.

Ampacity

Allowable ampacity depends on:

• Conductor size

• Installation method

• Ambient temperature

• Number of current-carrying conductors

• Raceway configuration

• Terminal temperature limitations

• Applicable electrical code

Final ampacity should be determined according to the applicable NEC or local electrical code.

THERMAL PERFORMANCE

THHN construction is typically rated for a maximum conductor operating temperature of:

90°C Dry

The cable is intended primarily for dry-location applications under the THHN designation.

Typical thermal characteristics include:

• 90°C maximum operating temperature in dry locations

• Good thermal stability

• Good resistance to thermal aging

• Stable electrical performance

• Suitable for continuous-duty building wiring

The actual allowable operating temperature may be limited by connected equipment, terminals, installation conditions, or applicable electrical code requirements.

MECHANICAL PERFORMANCE

The combination of thermoplastic insulation and nylon jacket provides a durable construction for installation in electrical raceways and conduits.

Typical mechanical characteristics include:

• Good abrasion resistance

• Good pulling performance

• Reduced installation friction

• Good surface durability

• Resistance to common oils and chemicals

• Good handling characteristics

The cable should be installed according to the applicable pulling tension and minimum bending-radius requirements.

INSTALLATION

AL THHN is typically installed in:

• Electrical conduit

• Raceway

• Distribution panels

• Switchboards

• Control panels

• Cable trays where permitted

• Equipment wiring systems

• Commercial buildings

• Industrial facilities

Installation should consider:

• Conductor ampacity

• Minimum bending radius

• Pulling tension

• Raceway fill

• Ambient temperature

• Number of current-carrying conductors

• Terminal temperature ratings

• Conductor identification

• Applicable grounding requirements

THHN is primarily intended for dry-location installations. Where wet-location installation is required, a dual-rated construction such as THHN/THWN-2 should be specified when applicable.

KEY FEATURES

• 600 V building wire

• Aluminum conductor

• Thermoplastic insulation

• Nylon jacket

• 90°C dry temperature rating

• Lightweight construction

• Good abrasion resistance

• Good installation flexibility

• Suitable for commercial and industrial wiring

• Wide range of conductor sizes

• Multiple conductor colors available

• Custom marking available

PRODUCT ADVANTAGES

Lightweight Aluminum Construction

Aluminum conductors provide significant weight savings compared with equivalent copper conductors, particularly in larger sizes.

Durable Nylon Jacket

The nylon jacket provides improved abrasion resistance and reduces friction during installation through conduit and raceway systems.

High-Temperature Capability

The THHN designation supports operation up to 90°C in dry locations under applicable conditions.

Flexible Application

AL THHN can be used for feeders, branch circuits, equipment wiring, control panels, and general-purpose electrical distribution.

Cost-Effective Power Distribution

Aluminum provides an economical conductor option for large-scale commercial and industrial electrical systems.

QUALITY CONTROL

Production and inspection procedures may include:

• Conductor diameter inspection

• Conductor resistance testing

• Conductor stranding inspection

• Insulation thickness inspection

• Insulation diameter inspection

• Spark testing

• High-voltage testing

• Jacket thickness inspection

• Finished cable dimensional inspection

• Surface marking inspection

• Appearance inspection

• Routine electrical testing

Additional inspection and testing documentation can be provided according to customer requirements.

PACKAGING

Typical packaging options include:

• Wooden reels

• Plywood reels

• Cartons for smaller sizes

• Coil packaging

• Export-grade cable drums

• Customized reel lengths

• Waterproof packaging

• Customized shipping marks

Packaging can be optimized according to conductor size, cable length, transportation method, and destination.

CUSTOMIZATION

Available options include:

• Conductor size

• Conductor stranding

• Insulation thickness

• Nylon jacket construction

• Conductor color

• Jacket color

• Surface marking

• Cable length

• Packaging

• Private labeling

• Project-specific requirements

TECHNICAL SUPPORT

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

• Technical datasheets

• Product specifications

• Construction information

• Conductor resistance data

• Cable dimensions

• Cable weight data

• Test reports

• Certificates of compliance

• Packing specifications

• Project-specific technical submittals

FAQ

What does THHN mean?

THHN identifies a thermoplastic-insulated building wire with a nylon jacket, typically rated for 90°C in dry locations and commonly used in raceways and conduit systems.

What is the voltage rating of AL THHN?

AL THHN is typically manufactured with a 600 V voltage rating.

What is the main advantage of aluminum THHN?

The primary advantages are lower weight and cost compared with equivalent copper building wire, particularly for larger conductor sizes.

Can AL THHN be used outdoors?

Outdoor use depends on the exact construction and applicable certification. Standard THHN is primarily intended for dry locations. For wet or outdoor applications, a suitable dual-rated construction such as THHN/THWN-2 should be selected when required.

Can AL THHN be installed in conduit?

Yes. Conduit and raceway systems are among the primary installation methods for THHN building wire.

Can AL THHN be used for feeders?

Yes. Larger conductor sizes are commonly used for feeder and power distribution applications, subject to ampacity and applicable code requirements.

Is aluminum THHN available in different colors?

Yes. Common conductor colors include black, white, red, blue, and green, with additional colors available according to project requirements.

Can the conductor size be customized?

Yes. A wide range of AWG and kcmil sizes can be manufactured according to customer specifications.

What is the difference between AL THHN and AL THWN-2?

AL THHN is primarily rated for dry locations at 90°C, while THWN-2 is designed for wet and dry locations with a 90°C wet/dry temperature rating under applicable requirements.

SEO INFORMATION

SEO Product Title:
AL THHN 600V Aluminum Building Wire with Nylon Jacket

Short Description:
AL THHN is a 600V aluminum building wire with thermoplastic insulation and nylon jacket, designed for commercial, residential, industrial, feeder, branch circuit, and electrical distribution applications.

Meta Description:
AL THHN 600V aluminum building wire with thermoplastic insulation and nylon jacket for commercial, industrial, feeder, branch circuit, and electrical wiring applications.

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AL THHN 600V Aluminum Building Wire

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AL THHN 600V aluminum conductor thermoplastic insulated nylon jacket building wire