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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