Name: China General Purpose Building Wire Copper Wire For Conduit Manufacturers Suppliers Factory - Greater Wire
Brand: Greater Wire
SKU: 312298559

Description

Technical Parameters

Certification

Dongguan Greater Wire & Cable Co., Ltd. is one of the leading manufacturers and suppliers of general purpose building wire copper wire for conduit in China, also supports customized service. Please rest assured to wholesale durable general purpose building wire copper wire for conduit made in China here from our factory. If you have any enquiry about free sample, please feel free to email us.

building NEC building wire

PRODUCT REAL SHOT

quality NEC building wire

Thermoplastic Nylon Building Wire for Conduit and Raceway Projects

GERITEL WIRE positions general purpose building wire for commercial, industrial and general building wiring where single-conductor copper wire is routed through approved wiring systems. The typical construction combines a copper conductor, heat- and moisture-resistant PVC insulation and a nylon sheath, giving the wire the recognizable THHN/THWN-2 profile used in conduit and raceway work. For projects requiring thermoplastic nylon building wire, this product is relevant to conduit, raceway, feeder and branch-circuit applications when installed under the applicable electrical rules. GERITEL WIRE supports size confirmation, color selection, OEM printing, coil or reel packaging and export documentation so distributors and project buyers can place repeat orders with clearer specifications.

PRODUCT SPECIFICATIONS

certified NEC building wire

Conductor Size	Conductor Stranding	Insulation Thickness	Jacket Thickness	Nominal O.D.	Approx Net Weight	Allowable Ampacities(1) @30℃ Ambient
AWG/ Kcmil	Number of Strands	mils	mils	Inch	lbs/1000ft.	75℃	90℃
14	1	15	4	0.101	17	20	25
12	1	15	4	0.119	25	25	30
10	1	20	4	0.150	39	35	40
14	19	15	4	0.113	16	20	25
12	19	15	4	0.133	25	25	30
10	19	20	4	0.164	39	35	40
8	19	30	5	0.218	63	50	55
6	19	30	5	0.252	96	65	75
4	19	40	6	0.325	153	85	95
3	19	40	6	0.353	193	100	115
2	19	40	6	0.381	236	115	130
1	19	50	7	0.437	300	130	145
1/0	19	50	7	0.480	373	150	170
2/0	19	50	7	0.522	464	170	195
3/0	19	50	7	0.572	577	200	225
4/0	19	50	7	0.629	719	230	260
250	37	60	8	0.703	857	255	290
300	37	60	8	0.758	1019	285	320
350	37	60	8	0.808	1181	310	350
400	37	60	8	0.851	1342	335	380
500	37	60	8	0.937	1665	380	430
600	61	70	9	1.036	2002	420	475
750	61	70	9	1.134	2465	475	535
1000	61	70	9	1.273	3296	545	615

CERTIFICATIONS

premium NEC building wire

PACKAGING

Plastic Reel

Small Wooden Reel

Large Wooden Reel

APPLICATION

Cable Tray Raceway Systems

Underground Conduit Installation

Branch Circuit Wiring

CASE

Mayo Clinic Hospital, Saint Marys Campus

30 Hudson Yards

Stanford University California USA

WHY CHOOSE US

30Years of experience
in one-stop service

Dongguan Greater Wire & Cable Co., Ltd. is a professional engineering-grade cable manufacturer in China, supplying certified electrical cable solutions for building, industrial, mining, energy, and infrastructure projects worldwide.

With a 30,000 m² factory, 30 production lines, experienced engineers, and a strict quality control team, we provide reliable, traceable, and compliant cable products for international engineering applications. Our products are supported by certifications including SAA, UL, cUL, VDE, TÜV, CE, CB, IEC, BPS, and ISO.

We are committed to safety, quality, transparency, and long-term partnership. From raw material inspection to finished product testing, every batch is carefully controlled to ensure stable performance and dependable project use.

Greater Cable - Certified Quality. Reliable Supply. Engineering Value.

15K

Finished Projects

150+

professional staff

15K

happy clients

92+

awards & certifacates

PLANT EQUIPMENT

GLOBAL CERTIFICATIONS

power raceway wire

CUSTOMER PHOTOS

quality raceway wire

INTERNATIONL TRANSPORTATION

Sea Freight

We offer reliable sea freight solutions for large-volume orders. Your goods are securely packed and shipped in containers, ensuring cost-effective delivery to ports worldwide.

Air Freight

For faster delivery, our air freight service ensures your products reach international destinations quickly, with careful handling and full tracking along the way.

International Express

Need urgent shipments? Our international express service delivers small to medium orders efficiently, providing door-to-door service with real-time tracking for peace of mind.

COOPERATIVE PARTNER

We are looking for a cooperative partner to expand our business.

How To Cooperate With Us?

Simply share your requirements, receive our professional solution, confirm samples, and enjoy fast, reliable production and worldwide delivery - working with us is that easy.

Our address

Building 2, No. 40 Luxi 2nd Road, Liaobu Town, Dongguan City, Guangdong Province, China

Phone Number

+86 136 6257 9592

+86 135 1078 4550

E-mail

manager01@greaterwire.com

FAQ

Can THWN-2 be used outdoors?

It can be used in suitable outdoor wiring methods because of its wet-location rating, but direct sunlight exposure requires a separate sunlight-resistant rating when applicable. Buyers evaluating outdoor THWN-2 wire can work with GERITEL WIRE on document review, sample confirmation, project quantities and repeat-order consistency.

Is every THHN/THWN-2 sunlight resistant?

No. Sunlight resistance can depend on manufacturer, color and conductor size. The surface marking and certification data must be checked. GERITEL WIRE can quote sunlight resistant THHN wire based on the actual project BOM rather than relying on a generic product name, helping reduce specification mismatches.

Can black THHN have a sunlight-resistant rating?

Yes, some manufacturers offer sunlight-resistant black THHN/THWN-2 across specified size ranges. This is a product-specific rating. For international orders of black sunlight resistant THHN wire, GERITEL WIRE can coordinate technical confirmation, color and size selection, printing, packing and shipment documentation.

Can THHN be exposed to gasoline?

Some THHN/THWN-2 products carry gasoline-resistance ratings, but this should be confirmed from the exact product marking rather than assumed for all wire. GERITEL WIRE can support gasoline resistant THHN wire distributors and contractors with product-data confirmation, OEM requirements, batch identification and export-ready packing.

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