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  • 250MCM THHN THWN-2 Copper Wire
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250 MCM THHN THWN-2 Stranded Copper Building Wire

250 MCM THHN THWN-2 Stranded Copper Building Wire

SKU: NES0184 Download PDF

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  • 250 MCM THHN THWN-2 Stranded Copper Building Wire
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Product Information

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Also Known As:

250  Copper wire, 250 building cable, 250  hook up wire, 250 conduit wire, 250  nylon wire, 250  construction cable, 250  thermoplastic-insulated copper wire, 250  THHN-PVC tray cable.

Conductor:

THHN THWN-2 conductors are constructed of annealed soft copper that follows ASTM B3 and ASTM B8 standards. 

Insulation:

The cable is insulated with a thermoset plastic jacket (PVC) that is flame-retardant, sunlight-resistant, lead-free, strong, and stable. Without being too bulky, it ensures that the cable can be used in harsh conditions. The jacket is color-coded in accordance with ICEA Method 4.

Resources
Applications
THHN stands for thermoplastic high heat-resistant nylon. Known for versatility and durability, it is the most common type of building cable. The double marking THHN /THWN-2 indicates that the electrical wire is suitable for wet and dry conditions equally (The letter "W" means that it is water-safe). Additionally, the cable is resistant to corrosion, excessive dryness, and the impact of chemicals. The building wire is rated 90 degrees Celsius in both wet and dry locations. The electrical wire is rated at 600 V.
Features
Standards:
ICEA S-73-532
UL 1277 (Resistant to flame, moisture, and sunlight)
UL 1581, UL 83, UL 1063 , UL 758
A-A59544
ASTM B3 and B8 conductor
ANSI/NFPA 70 for Safe Electrical Design and Installation
RoHS compliant
Safe For Commercial and Industrial Use
Color-coded #1-E2 per ICEA S-73-532
May be used in NEC Class I and II systems
May be used in Division 2 hazardous locations
Allowed for Exposed Run (ER) and be used in accordance with NEC

THHN THWN-2 Copper Building Wire Allowable Ampacity in Duct: 290
Specifications
Size AWG: 250
Weight per 1,000 ft: 845 lbs
Outside Diameter: 0.720 inches
Conductors: Annealed Soft Copper per ASTM B3 and ASTM B8
Number of Strands: 37
Insulation: PVC
Insulation Thickness (mils): 60
Nylon Thickness (mils): 8
Jacket: PVC
Houston Wire Part #: HW001 25001
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