8/3 MC Cable with Ground 100FT - 8AWG Pure Copper MC Alum Cable

In this review of the 8/3 MC Cable with Ground 100FT, the bottom line is practical: this heavy duty metal clad cable is aimed at electricians and contractors who need a durable, NEC-compliant run for branch circuits, HVAC, or commercial lighting. The reviewer found the single biggest reason to buy is the combination of industrial-grade metal armor and UL-listed THHN/THWN copper conductors, which together deliver reliable protection and conductivity in exposed or concealed installations.

Key Features

• Type THHN/THWN conductors: Provides widely accepted insulation types rated for 90C dry and 75C wet, suitable for most building wiring applications.
• Heavy-duty metal armor: Steel interlocked armor resists corrosion and physical damage, making it appropriate for harsh or industrial environments.
• NEC Article 330 compliance: Designed for exposed and concealed installations per NEC, so it meets code expectations for many commercial and residential projects.
• High purity copper: 99.99% oxygen-free copper conductors improve conductivity and reduce the risk of oxidation-related degradation over time.
• UL listings: UL 83, UL 1569, and UL 2556 listings indicate tested fire-resistant insulation and sheath performance under defined standards.
• 600V voltage rating: A common voltage rating that covers most branch-circuit and equipment power needs in buildings.

Who It's For

This cable is best for licensed electricians, contractors, and facilities teams installing branch circuits, HVAC connections, or lighting runs where a robust, metal-clad solution is required. Its armored sheath and UL-listed insulation make it especially useful in commercial buildings, workshops, and factory settings where mechanical protection and fire resistance are priorities.

Home DIYers doing light work in protected locations may find the cable heavier and less flexible than nonmetallic alternatives, so those users should consider simpler NM or conduit-based options where permitted. If extreme flexibility or very low-bend installations are needed, a different jacketed or flex-rated cable might be preferable.

Pros & Cons

Pros

• Robust metal armor provides excellent physical protection and corrosion resistance for exposed runs.
• UL-listed THHN/THWN conductors and multiple UL standards give confidence in insulation and fire performance.
• High-purity copper conductors deliver strong conductivity and durability for long-term use.
• 600V rating and NEC compliance make it versatile for many commercial and residential branch circuits.

Cons

• Armored cable is heavier and less flexible than nonmetallic alternatives, which can complicate tight bends and installation in restricted spaces.
• Ground conductor is 10AWG rather than 8AWG, which is appropriate but something installers should note for specific code or equipment requirements.

Specifications

Conductor type	THHN/THWN copper
Conductor size	8AWG (three conductors)
Ground wire	10AWG
Armor	Industrial-grade steel interlocked
Temperature rating	90C dry / 75C wet
Voltage rating	600V
Standards	UL 83, UL 1569, UL 2556; RoHS

Our Verdict

The 8/3 MC Cable with Ground 100FT is a practical, code-minded choice for professionals who need an armored, UL-listed cable for branch circuits, HVAC, or lighting in commercial or industrial settings. It pairs durable metal armor with high-purity copper conductors and clear temperature and voltage ratings, offering good long-term value for installations where protection and compliance matter most.

Frequently Asked Questions

Is this cable suitable for exposed runs in a commercial building?
Yes. It meets NEC Article 330 guidance for exposed and concealed use and carries multiple UL listings appropriate for commercial installations.

What are the conductor and ground sizes?
The cable has three 8AWG copper conductors and a 10AWG ground conductor.

Can this cable be used outdoors or in wet locations?
The conductors are rated 90C dry and 75C wet and the construction is robust, but verify local code and installation methods when using in outdoor or continuously wet environments.