Overview of the CAB-AC-30A-US4= Power Cable

The ​​Cisco CAB-AC-30A-US4=​​ is a ​​30A/250V AC power cable​​ designed for high-density Cisco Catalyst switches, UCS servers, and data center equipment. Built to meet ​​NEMA L6-30P standards​​, this cable supports demanding power requirements in environments like hyperscale data centers or industrial networks. Unlike generic alternatives, it ensures precise compatibility with Cisco’s high-current power supplies, minimizing risks of voltage drops or connector failures under load.

Key features:

• ​​High-current capacity​​: Delivers up to 30A for Cisco’s ​​6kW–10kW AC power systems​​.
• ​​Regional compliance​​: Certified for US NEMA L6-30P outlets, common in commercial and industrial settings.
• ​​Robust construction​​: Heavy-duty insulation and shielded connectors rated for continuous 60°C operation.

Technical Specifications and Safety Standards

What devices require this cable?

The CAB-AC-30A-US4= is essential for powering Cisco’s ​​Catalyst 9500H Series switches​​ and ​​UCS C4800 ML servers​​, which demand 30A input for high-performance workloads like AI/ML or real-time analytics.

Can it be used with non-Cisco PDUs or racks?

While physically compatible with standard NEMA L6-30R receptacles, Cisco ​​strongly advises against​​ mixing with third-party PDUs due to potential mismatches in power tolerances and surge protection.

How does it enhance safety in high-load scenarios?

The cable meets ​​UL 60950 and NEC Article 400​​ standards, featuring double-layered insulation and strain relief collars to prevent arcing or insulation cracks during thermal expansion.

Deployment Best Practices

• ​​Circuit validation​​: Ensure upstream breakers and PDUs are rated for 30A continuous load to avoid tripping.
• ​​Redundancy​​: Pair with Cisco’s ​​dual 30A power supplies​​ for N+1 redundancy in mission-critical setups.
• ​​Thermal management​​: Allow adequate spacing between cables in conduit to dissipate heat generated by 30A current flow.

Sourcing Authentic CAB-AC-30A-US4= Cables

Counterfeit cables risk catastrophic failures, including melted connectors or fire hazards. For guaranteed compliance, “CAB-AC-30A-US4=” is available here, offering Cisco-certified hardware with full warranty coverage.

Critical purchasing considerations:

• ​​Certification proof​​: Verify UL and NEMA markings on the cable jacket.
• ​​Future scalability​​: Stock spares for rapid replacements, as lead times for custom 30A cables can delay projects.

The Uncompromising Role of High-Current Cables

In data center retrofits, I’ve encountered melted third-party cables that crippled operations for days. The CAB-AC-30A-US4= isn’t just a component—it’s a ​​liability mitigator​​ for enterprises pushing power infrastructures to their limits. Cisco’s rigorous testing ensures seamless integration with intelligent PDUs and power monitoring tools, which generic cables often lack. For teams deploying high-density AI clusters or high-frequency trading systems, this cable isn’t optional—it’s the backbone of ​​predictable, high-uptime performance​​.