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THHN / THWN-2 / MTW

THHN / THWN-2 / MTW

Type THHN/THWN conductors are primarily used in conduit for services, feeder, and branch circuits in commercial or industrial applications as specified in the National Electrical Code(R). When used as type THHN, conductor is suitable for use in dry locations at temperatures not to exceed 90°C. When used as type THWN, conductor is suitable for use at temperatures not to exceed 90°C, dry locations or 75°C wet locations or not to exceed 75°C when exposed to oil or coolant. When used as type THWN-2, conductor is suitable for use in wet and dry locations at temperatures not to exceed 90°C or not to exceed 75°C when exposed to oil or coolant. When used as type MTW, conductor is suitable for use in wet locations, or when exposed to oil or coolant at temperatures not to exceed 60°C, or dry locations at temperatures not to exceed 90°C.  Conductor temperatures not to exceed 105°C in dry locations when rated AWM and used as appliance wiring material. Voltage rating for all applications is 600 volts.

Certification :   American UL certification  

Voltage :

Insulation material :   Labeled     PVC  

Sheath material :

Installation way :   Occasional flexing     Fixed installation  

Shielding :   Unshield  

Environment :   General outdoor environment     General indoor environment     Corrosive environment  

High temperature :   90°C  

Low temperature :

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  • Product details
Product introduction
  • 01 Product application

    Type THHN/THWN conductors are primarily used in conduit for services, feeder, and branch circuits in commercial or industrial applications as specified in the National Electrical Code(R).

    When used as type THHN, conductor is suitable for use in dry locations at temperatures not to exceed 90°C.

    When used as type THWN, conductor is suitable for use at temperatures not to exceed 90°C, dry locations or 75°C wet locations or not to exceed 75°C when exposed to oil or coolant.

    When used as type THWN-2, conductor is suitable for use in wet and dry locations at temperatures not to exceed 90°C or not to exceed 75°C when exposed to oil or coolant.

    When used as type MTW, conductor is suitable for use in wet locations, or when exposed to oil or coolant at temperatures not to exceed 60°C, or dry locations at temperatures not to exceed 90°C. 

    Conductor temperatures not to exceed 105°C in dry locations when rated AWM and used as appliance wiring material. Voltage rating for all applications is 600 volts.



  • 02 Product characteristics

    Tough, heat and moisture resistant


  • 03 Technical certificationRoHS Compliant
    Comply with UL83 standard
Product structure

Conductor: Soft annealed bare copper, Class B stranding

Insulation: Tough, heat and moisture resistant Polyvinyl chloride (PVC) insulation over which a nylon (polyamide) jacket is applied.

Color: Upon request


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