250 MCM THHN Cable

250 MCM THHN Cable
Details:
Temperature resistance, suitable for various environmental
UL BPS certified, long service life
High compatibility, suitable for a variety of devices
More than 20 years of production experience
Quick online quote & free samples available
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Description
Technical Parameters
Certification
thhn

 

250 MCM THHN/THWN Cable

250 MCM THHN wire is a robust and versatile electrical wire designed to meet the demanding requirements of various industrial and commercial applications. Engineered with high-quality materials and advanced insulation technology, this wire ensures reliable performance in both dry and wet environments, making it a preferred choice for electrical installations that require durability and safety. 250 MCM THHN wire features a dual-layer insulation system, comprising a PVC core insulation and an outer Nylon sheath. This construction conforms to the requirements of Standard 83 and UL Standard 1063 (MTW), ensuring compliance with key industry safety and performance standards. With a minimum bending radius of 8 times the core diameter (8x core Ø), the 250 MCM THHN wire offers excellent flexibility during installation. This feature allows it to be easily routed through conduits and other tight spaces without risking damage to the wire.

 

Application

 

 

250 MCM THHN wire is widely used in various applications, suitable for use in service, feeder, and branch circuits, the wire ensures efficient power distribution across commercial and industrial facilities. THHN wire's flexibility and durability make it ideal for installation in conduits and cable trays, where it can be easily routed and protected. THHN wire's robust construction allows it to power heavy machinery and equipment in industrial settings, providing reliable performance even in demanding conditions.

thhn wire application

 

Feature

 

thhn copper wire

 

• ASTM- B3, B8, and B787 (19 Wire Combination Unilay-Stranded)
• UL Standards 83, 758, 1063, and 1581
• CSA C22.2 No.75, T90 Nylon Sizes through 1000 kcmil
• FT2 - All Sizes
• Sunlight Resistant - Sizes 8 AWG and larger
• RoHS/REACH Compliant
• UL & BPS certification
• THHN or T90 Nylon- Dry locations not to exceed 90° C
• THWN- Wet locations not to exceed 75°C or dry locations not to exceed 90°C or locations not to exceed 75°C when exposed to oil
• THWN-2- Wetordry locations not exceed 90°C or locations not to exceed 75°C when exposed to oil

 

Certification

 

 

Our products have achieved various prestigious international certifications, including UL, TUV, EU CPR, CE, ROHS, and others.

UL83 THHN cable certification

 

Package

 

THHN wire package

 

Production Line

 

thhn cable factory

 

The company always adheres to the business philosophy of "quality first, customer first", strictly follows international and industry standards for production and quality control, and its products have passed many international certifications such as UL, TUV, SAA, CE, etc., and are deeply trusted by domestic and foreign customers. We have an experienced R&D team, continuously invest in technological innovation, and continuously launch new products that meet market demand. The company is also equipped with advanced production equipment and complete testing facilities. From raw material procurement to finished product delivery, each process is strictly monitored to ensure the excellent quality of the products.

In addition to high-quality products, we are also committed to providing comprehensive customer service. Our professional sales and technical support team always keeps in close contact with customers, understands customer needs, provides tailor-made solutions, and ensures the successful implementation of each project. Over the years, our products have been exported to Southeast Asia, the Middle East, Africa, Europe, North America and other regions, and have won wide market recognition.

 

Case

 

Company cases

 

Partner

 

greater wire Partner

 

FAQ

 

Q: What size is 250 MCM wire?

A: The size of 250 MCM (thousand circular mils) wire corresponds to a conductor with a cross-sectional area of 250,000 circular mils.

Q: How many amps is 250 MCM copper cable?

A: THHN/THWN Copper Wire:
90°C (194°F) Rating in Dry Environments: 290 amps.
75°C (167°F) Rating in Wet Environments: 255 amps.

Q: Is 250 MCM the same as 4/0?

A: No, 250 MCM and 4/0 AWG are not the same size
250 MCM (thousand circular mils) has a cross-sectional area of 250,000 circular mils.
4/0 AWG (American Wire Gauge) has a cross-sectional area of approximately 211,600 circular mils.

 

 

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thwn wire

 

Conductor Insulation Thickness (mils) Jacket Thickness (mils) Nominal 0.D.(mils) Approx.Net Wt.Per 1000'(lbs.) Allowable Ampacities+
Size (AWG or kcmil) No.of strands 60℃ 75℃ 90℃
14* 1 15 4 102 15 15 15 15
12* 1 15 4 119 23 20 20 20
10* 1 20 4 150 36 30 30 30
14* 19 15 4 109 16 15 15 15
12* 19 15 4 128 24 20 20 20
10* 19 20 4 161 38 30 30 30
8 19 30 5 213 63 40 50 55
6 19 30 5 249 95 55 65 75
4 19 40 6 318 152 70 85 100
3 19 40 6 346 189 85 100 115
2 19 40 6 378 234 95 115 130
1 19 50 7 435 299 110 130 145
1/0 19 50 7 474 372 125 150 170
2/0 19 50 7 518 462 145 175 195
3/0 19 50 7 568 575 165 200 225
4/0 19 50 7 624 718 195 230 260
250 37 60 8 694 851 215 255 290
300 37 60 8 747 1012 240 285 320
350 37 60 8 797 1174 260 310 350
400 37 60 8 842 1334 280 335 380
500 37 60 8 926 1655 320 380 430
600 61 70 9 1024 1987 350 420 475
750 61 70 9 1126 2464 400 475 535
1000 61 70 9 1275 3257 455 545 615

 

THHN wire certification

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