Square D KA26110AC 26110A 2-Pole 600 V Circuit Breaker

Meet the Square D KA26110AC 26110A 2-Pole 600 V Circuit Breaker—a compact, reliable protection device designed for demanding electrical panels in commercial and light industrial environments. This two-pole breaker interrupts both hot legs in a circuit, delivering dependable protection against overloads and faults while integrating seamlessly with Square D panels and the KA-series ecosystem.

Key specifications

• Part Number: KA26110AC
• Current rating: 26110 A
• Poles: 2
• Voltage rating: 600 V

Who should consider this breaker? Electricians, facilities managers, and maintenance teams responsible for commercial buildings, manufacturing floors, and data centers will benefit from a two-pole solution that protects multi-conductor circuits. If your panel accepts KA-series breakers, KA26110AC offers a straightforward, compatible upgrade or replacement path with consistent protection characteristics across your distribution network.

Why this two-pole design matters

• Two-pole construction ensures simultaneous disconnection of both conductors, improving safety on multi-wire circuits and reducing the risk of arc faults during fault conditions.
• The 600 V voltage rating accommodates higher-voltage distribution scenarios common in larger electrical installations, expanding the range of systems where you can rely on this device.
• Part of Square D’s trusted KA family, it delivers predictable trip behavior and straightforward sourcing for replacements and maintenance within an existing protection scheme.

Practical use cases

• Feeding two-wire branch circuits in commercial spaces with high safety and reliability requirements.
• Motor or equipment feeders where simultaneous isolation of both hot legs is essential for safe maintenance.
• Upgrading older panels to ensure consistent protection across all distribution lines without changing the panel architecture.

Tips for installation and maintenance

• Verify panel compatibility: ensure your enclosure accepts KA-series breakers for proper fit and operation.
• Match the circuit’s current requirements with the KA26110AC rating to ensure appropriate protection without nuisance trips.
• Power down the system and follow proper lockout/tagout procedures when replacing or upgrading breakers.
• Retain the part number KA26110AC for quick ordering of spares or future maintenance planning.

Designed to deliver consistent, dependable protection in real-world electrical environments, the Square D KA26110AC 2-Pole 600 V circuit breaker is a practical, purpose-built choice for reliable panel protection and sustained electrical safety.