Square D HDA260402AA 260402A 2-Pole 600 V Circuit Breaker

Meet the Square D HDA260402AA 2-Pole 600 V Circuit Breaker — a rugged, dependable protective device engineered for industrial power systems. Identified by the part number HDA260402AA, this breaker delivers two-pole protection with a 600 V maximum rating and a current rating of 260402 A. Designed for use in Square D panels and panelboards, it provides precise overcurrent protection for dual-conductor circuits.

What makes it stand out

• Two-pole design protects both hot legs simultaneously, reducing the risk of an unprotected current path during faults.
• 600 V voltage rating suits commercial and industrial distribution, enabling safe operation on higher-voltage circuits.
• Part number HDA260402AA ensures compatibility with Square D system architecture and standard panel footprints.
• Current rating: 260402 A provides robust protection for demanding loads or feeders in mid-to-large installations.
• Reliable, straightforward replacement option for service upgrades or panel retrofits, helping minimize downtime.

Ideal use cases

• Industrial machinery feeders and conveyor systems that require dependable dual-line protection.
• Panelboard main or feeder protection in manufacturing facilities and other high-demand environments.
• Backup power systems and critical loads in commercial buildings where 600 V class protection is appropriate.

Why this matters

• Coordinated protection across two conductors helps prevent imbalanced faults and improves overall electrical safety.
• The 600 V rating expands compatibility with higher-voltage distribution schemes common in industrial settings.
• Using the dedicated Square D HDA260402AA part ensures alignment with existing Square D gear and replacement schedules.

Practical tips: verify the breaker’s current rating matches the connected circuit, ensure it is installed in a compatible Square D panel or enclosure, and follow all applicable electrical codes during installation and maintenance. Keep the part number HDA260402AA handy for fast replacements and accurate stocking in service inventories.