Square D HDA260204AABCSK 260204A 2-Pole 600 V Circuit Breaker

The Square D HDA260204AABCSK is a purpose-built two-pole circuit breaker designed to protect 2-pole circuits in commercial and light-industrial electrical systems. With a 600 V rating and part number HDA260204AABCSK, this breaker is built to provide dependable interruption and reliable protection where it matters most.

Overview

Built for compatibility with Square D enclosures that accept HDA series breakers, this 2-pole device integrates seamlessly into existing panels to safeguard your critical feeders and equipment. Its robust construction is tailored for environments where steady performance and quick fault isolation are essential.

Key specifications

• Part number: HDA260204AABCSK
• Poles: 2
• Voltage rating: 600 V

Why this matters

Two-pole protection at up to 600 V helps ensure that both conductors in a multi-line circuit are simultaneously isolated during a fault. This minimizes electrical stress on connected equipment and improves overall safety for personnel working on feeders, motors, and other 2-pole applications. The HDA260204AABCSK is designed to slot into compatible Square D panels without sacrificing available space or performance.

Ideal applications

• Protect two-pole feeders in commercial electrical rooms and light-industrial panels
• Replace aging or worn 2-pole breakers in Square D installations with a reliable, readily available component
• Provide circuit protection for motors, conveyors, and other two-line circuits in 600 V systems

Compatibility and installation tips

• Ensure your panel accepts HDA series breakers and that the bus connection aligns with the HDA260204AABCSK dimensions
• Power down the system before installing or replacing the breaker
• Secure the breaker firmly in the panel and follow the enclosure’s torque specifications for the terminals
• Verify the replacement’s amp rating matches the protected circuit and that labeling is updated to reflect the new device

Practical considerations

Choosing the right two-pole breaker matters for both safety and reliability. The HDA260204AABCSK offers a straightforward, compatible option within Square D’s HDA family, reducing downtime and simplifying maintenance for facilities managers and electrical technicians. When planning panel upgrades or replacements, this part provides a durable, category-appropriate choice that aligns with standard Square D assemblies.