4/4 MC Cable – Four-Conductor Metal Clad Cable for High-Demand Power Circuits

4/4 MC Cable features four 4 AWG copper conductors plus a ground wire, all encased in durable interlocked aluminum armor. This heavy-duty cable is ideal for high-load, multi-phase circuits or where three-phase power with a neutral is required. Its robust design meets the needs of commercial and industrial installations.

  • 4 4 Mc Cable

4/4 MC Cable


Four-Conductor Metal Clad Cable for High-Demand Power Circuits

  • Conductor Size 4 AWG (American Wire Gauge)
  • Construction Four color-coded conductors (e.g., black, red, blue, white) + bare or green ground
  • Armor Interlocked aluminum armor
  • Voltage Rating 600V
  • Insulation THHN/THWN-2 insulation
  • Standards UL Listed, NEC Article 330 compliant
  • Temperature Rating 90°C (dry locations)


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4/4 MC Cable – Four-Conductor Metal Clad Cable for High-Demand Power Circuits

4/4 MC Cable features four 4 AWG copper conductors plus a ground wire, all encased in durable interlocked aluminum armor. This heavy-duty cable is ideal for high-load, multi-phase circuits or where three-phase power with a neutral is required. Its robust design meets the needs of commercial and industrial installations.

Common Applications for 4/4 MC Cable

  • 3-phase systems with neutral (e.g., 208Y/120V or 480Y/277V)
  • Large commercial electrical panels
  • Data centers and industrial control systems
  • Backup generators and transfer switches

Benefits of 4/4 MC Cable

  • High Capacity: Suitable for circuits up to approximately 85–95 amps depending on conditions
  • Four Conductors + Ground: Ideal for balanced loads requiring a neutral
  • Conduit-Free Installation: Faster installation in code-approved dry locations
  • Rugged Design: Resists damage during handling and operation
  • Code-Compliant: Approved for use in many commercial wiring scenarios

Frequently Asked Questions

Q: What’s the difference between 4/3 and 4/4 MC Cable?
A: 4/4 MC Cable includes an additional conductor, typically a neutral, for use in systems that require all three phases plus neutral.

Q: Can 4/4 MC Cable be used outside or underground?
A: Not in its standard form. Use a PVC-jacketed MC Cable or MC-HL version for those applications.

Q: What is the ampacity of 4 AWG in this setup?
A: Typically around 85–95 amps depending on derating and ambient temperature.


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