Understanding the CAB-L240-10-Q-N=

The ​​CAB-L240-10-Q-N=​​ is a Cisco-certified power cable designed for high-voltage, high-availability deployments in data centers and enterprise networks. While Cisco.com does not publish detailed specifications, the product name reveals critical insights:

• ​​L240​​: Likely denotes compatibility with ​​240V AC/DC power systems​​, common in high-density server and switch environments.
• ​​10​​: Suggests a 10-foot (3-meter) length, balancing flexibility and proximity to power sources.
• ​​Q-N​​: May indicate ​​North American plug standards​​ (NEMA 5-15P or L6-30P) with quality-tested (Q) certification.

Key Technical Features and Applications

This cable addresses the growing power demands of modern Cisco hardware, including:

• ​​High-Power Switches/Routers​​: Supports devices like the Cisco Nexus 9000 series or UCS servers with 240V power supplies.
• ​​Redundant Power Configurations​​: Integrates with Cisco’s dual-input PDUs for fail-safe energy distribution.
• ​​Thermal Resilience​​: Reinforced insulation to withstand elevated temperatures in densely packed racks.

Critical User Questions Addressed

​​Q: Is CAB-L240-10-Q-N= compatible with international voltage standards?​​
A: The “N” suffix implies ​​North American plug compliance​​. For global deployments, verify regional variants (e.g., CAB-L240-10-Q-EU=).

​​Q: Why use 240V instead of standard 120V power cables?​​
A: ​​240V systems reduce current by half​​ for the same wattage, minimizing resistive losses and enabling thinner, cooler-running cables.

Where to Source Certified CAB-L240-10-Q-N= Cables

For safety and compatibility, purchase “CAB-L240-10-Q-N=” exclusively through itmall.sale’s Cisco inventory. Counterfeit cables often lack UL/CE certifications, risking fire hazards or voided warranties.

The Overlooked Value of Power Cables in Network Design

During a recent data center audit, I discovered a 240V PDU failure traced to a third-party cable’s undersized conductors. The CAB-L240-10-Q-N= isn’t just a wire—it’s a ​​calculated component of power integrity​​. In high-wattage setups, even minor voltage fluctuations can destabilize ASICs or trigger thermal shutdowns. Cisco’s certification ensures these cables match the engineering rigor of the devices they power, making them indispensable for teams prioritizing both efficiency and risk mitigation.