Is the wire suitable for underground use?

Yes, the THWN/THWN-2 variants are designed for underground, construction, and industrial applications with excellent moisture resistance.

Single Core Copper Thhn Thwn Thwn-2 Electrical Building Wire

Name: Single Core Copper Thhn Thwn Thwn-2 Electrical Building Wire
Brand: Foshan POWENEX Technology Co., Ltd
SKU: 2279158375

Guangdong, ChinaFoshan POWENEX Technology Co., Ltd

US$3.00-150.00

500 Meters

Product specifications

AMG

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Type

Insulated

Conductor Type

Stranded / Solid / Compact Stranded

Model NO.

THH/THWN/THWN-2

Application

Underground, Construction, Industrial, Power Station

Conductor Material

Copper / Aluminum Alloy

Sheath Material

Nylon

Insulation Material

PVC

Material Shape

Round Wire

Range of Application

Power Distribution, Feeder, Branch Circuit

Certification

ISO9001, CE, RoHS, UL, cUL

Brand

Vl Cable

Voltage

600V

Standard

UL 44, UL 1581, ASTM

Insulation Color

Black, Red, Blue, White, Green(Optional)

Shipping Method

Sea Freight / Land Freight / Air Freight

Max Working Temp

90°C Dry (Thhn), 75°C/90°C Wet (Thwn/Thwn-2)

Flammability

VW-1 / FT2 / Flame Retardant

Bending Radius

8 X Overall Diameter

Stock

Made-to-Order

Feature

Heat, Moisture, Oil, and Gasoline Resistant II

Transport Package

Cable Drum

Specification

14 AWG - 1000 kcmil

Trademark

Origin

China

HS Code

85444949

Production Capacity

100000 Meters/Year

Key features

UL & ASTM Certified: Fully complies with UL 83, UL 44, UL 1581, and ASTM standards for safety and quality.

Superior Resistance: Resistant to heat, moisture, oil, and gasoline, suitable for harsh industrial environments.

Flexible Insulation: PVC insulation with a tough Nylon jacket for abrasion resistance and easy pulling.

Custom Color Options: Available in Black, Red, Blue, White, Green, and other custom colors upon request.

High Conductivity: Manufactured with annealed copper or AA-8000 series aluminum alloy conductors.

Versatile Applications: Ideal for commercial, industrial, residential wiring, and power distribution systems.

Flexible Customization: Supports full customization including voltage, standard, and specific design requirements.

Company profile

Flexible CustomizationQA/QC InspectorsR&D CapabilitiesEnvironmental Protection

Foshan POWENEX Technology Co., Ltd

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Guangzhou PortAverage Response Time: ≤3.71h

AI-Powered supplier vetting

SummaryPOWENEX Technology is identified as the overseas business division of VL Cable Group, a manufacturer with more than 45 years of industry experience. The supplier reports professional technical R&D capability, 3D software design services, broad customization options, and multiple cable production lines covering conductor processing, insulation, cabling, armoring, and sheathing. It holds ISO9001:2015, ISO45001:2018, ISO14001, ISO50001, and CCC certifications, and maintains documented finished-product inspection procedures. Manufacturing contracts, in-stock service capability, and several quotation terms are reported. However, evidence also shows no SDK availability, no overseas warehouse, showroom, agents, branches, or offline trade-show participation. Export experience is stated as one year, with 11%–20% of sales from exports. No Fortune 500 cooperation is reported, and repeat-buyer preference is recorded as zero.

Supplier typeThe supplier is explicitly described as a professional technical supplier and as the overseas business division of VL Cable Group Co., Ltd., a leading electrical equipment manufacturer with more than 45 years of industry experience. This indicates a manufacturer-linked technical and international sales organization rather than an unidentified trading entity.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, ISO14001, ISO50001, and CCC certifications. CCC is also identified for product compliance, providing explicit evidence of both management-system and product-certification coverage.

R&D capabilityThe supplier reports professional technical R&D capability, 3D software design services, and seven R&D engineers. These are positive indicators of design and development resources, although SDK availability is explicitly absent.

Production capacityThe reported production infrastructure includes conductor drawing and annealing, stranding, triple-layer insulation co-extrusion, cabling, armoring, and sheathing production lines. The supplier also reports valid manufacturing-capacity contracts with associated subcontractors and in-stock service capability, supporting a broad production and fulfillment base.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides 3D software design services, indicating that customization extends from specification input through design support.

Client casesThe supplier explicitly reports no cooperation with Fortune 500 companies, and preference from repeat buyers is recorded as zero. No positive customer-case evidence is provided in the available slices.