PRODUCT REAL SHOT
300kcmil THHN/THWN-2 MC Cable Supplier for Commercial Complex Sub-main Power Distribution
Our 300kcmil MC Cable with Ground is a high-capacity Metal Clad Cable configured with durable THHN/THWN-2 conductor, fully compliant with UL 1569 Cable standards and certified as a genuine UL Listed MC Cable. Tailored for medium-to-large commercial power demand scenarios, this high-performance Power Distribution Cable is mainly applied to commercial complex sub-main lines, high-rise building layered power supply, hotel central power distribution and shopping mall regional power supply systems. The premium THHN/THWN-2 insulation delivers outstanding heat resistance and anti-aging properties, adapting to long-term high-density power operation in commercial buildings. The robust metal armor effectively resists building construction extrusion and daily environmental erosion. As a professional 300kcmil MC Cable Supplier, we provide stable bulk supply for North American commercial construction and renovation projects.
PRODUCT SPECIFICATIONS
| Conductors |
Outside Diameter Over Armor (in) |
Approximate Net Weight (lbs/1000ft) |
Allowable Ampacity (Amps) |
Standard Packaging (ft) |
||||
|---|---|---|---|---|---|---|---|---|
| AWG/NO. | Type | Ground | 75℃ | 90℃ | Reels | |||
| 250-3 | Stranded | 4 AWG Bare | 1.702 | 2730 | 255 | 290 | 1000' | |
| 250-4 | Stranded | 4 AWG Bare | 1.862 | 3578 | 255 | 290 | 1000' | |
| 300-3 | Stranded | 3 AWG Bare | 1.773 | 3362 | 285 | 320 | 1000' | |
| 300-4 | Stranded | 3 AWG Bare | 1.962 | 4395 | 285 | 320 | 1000' | |
| 350-3 | Stranded | 3 AWG Bare | 1.930 | 3754 | 310 | 350 | 1000' | |
| 350-4 | Stranded | 3 AWG Bare | 2.120 | 4927 | 310 | 350 | 1000' | |
| 400-3 | Stranded | 3 AWG Bare | 1.969 | 4382 | 335 | 380 | 1000' | |
| 400-4 | Stranded | 3 AWG Bare | 2.182 | 5738 | 335 | 380 | 1000' | |
| 500-3 | Stranded | 2 AWG Bare | 2.208 | 5286 | 380 | 430 | 1000' | |
| 500-4 | Stranded | 2 AWG Bare | 2.423 | 6952 | 380 | 430 | 1000' | |
| 600-3 | Stranded | 2 AWG Bare | 2.433 | 6351 | 420 | 475 | 1000' | |
| 600-4 | Stranded | 2 AWG Bare | 2.465 | 7880 | 420 | 475 | 1000' | |
| 750-3 | Stranded | 1 AWG Bare | 2.644 | 7833 | 475 | 535 | 1000' | |
| 750-4 | Stranded | 1 AWG Bare | 2.910 | 10325 | 475 | 535 | 1000' | |
CERTIFICATIONS
PACKAGING
Roll
Small Wooden Reel
Large Wooden Reel
APPLICATION
Warehouse and Logistics Facility Wiring
Power Wiring for Motors, Pumps, and Ventilation Equipment
Public Infrastructure
CASE
Ritz-Carlton, Key Biscayne
Johns Hopkins Hospital
First Solar solarpanel factory
WHY CHOOSE US
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.
PLANT EQUIPMENT
GLOBAL CERTIFICATIONS
CUSTOMER PHOTOS
INTERNATIONL TRANSPORTATION
01
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.
02
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.
03
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.
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
manager01@greaterwire.com
FAQ
What is the main application of 300kcmil THHN/THWN-2 MC Cable?
It is ideal for commercial complex sub-main lines, high-rise layered power supply and hotel central distribution systems for medium high-load power needs.
Is this 300kcmil UL Listed MC Cable compliant with North American building codes?
Yes, it strictly follows UL 1569 Cable standards and NEC specifications, fully approved for commercial building electrical installation in the US and Canada.
Why choose THHN/THWN-2 conductor for commercial building power distribution?
THHN/THWN-2 insulation features excellent heat resistance and low smoke performance, meeting fire safety requirements for crowded commercial buildings.
What advantages does this 300 kcmil 3/C THHN/THWN-2 MC cable with ground PVC jacket have over ordinary cables?
It combines large current-carrying capacity, PVC jacket protection and armored structure, avoiding damage during building concealed wiring and ensuring long-term stable power supply.
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