Square D HDA260402AABCSH 260402A 3-Pole 480 V Circuit Breaker

Meet the Square D HDA260402AABCSH 3-Pole 480 V Circuit Breaker — a purpose-built protective device engineered for demanding 3-phase power distribution. With part number HDA260402AABCSH, this breaker is designed to drop in to Square D panels that accept 3-pole, 480-volt protection, delivering reliable overcurrent protection where it matters most.

Key specifications at a glance:

• Current rating: 260402 A
• Poles: 3
• Voltage rating: 480 V

What this means in real-world terms: in an industrial setting with 3-phase equipment, this Square D breaker guards feeders and motors from overloads and short circuits. The 3-pole configuration ensures all three phases trip together, preventing phase imbalance that can damage equipment and cause unexpected downtime. The rugged build is ready for factory floors, switchgear, and distribution panels where dependable performance under load is non-negotiable.

Why choose this model over generic 480 V breakers? It’s built to pair seamlessly with Square D enclosures, offering consistent tactile feedback, clearly labeled trip information, and a form factor that minimizes panel downtime during replacement. This is the kind of component you want when reliability, serviceability, and rapid maintenance matter in critical electrical infrastructure.

Ideal use cases include protecting feeders to large motors, conveyors, pumps, HVAC compressors, and other 480 V equipment in manufacturing, processing facilities, and industrial plants. It’s also suited for retrofit projects where you’re updating legacy panels to modern Square D protection without changing the surrounding hardware.

Tips for installation and care: verify compatibility with your existing Square D panel or distribution board, replace with the same part number or equivalent HDA family unit, and follow standard electrical best practices for safe installation and torque specs as per your panel manufacturer’s guidelines.