Square D HDA36100AA 36100A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36100AA 3-Pole 600 V Circuit Breaker—a rugged, dependable protection device built for demanding three-phase power systems. With the part number HDA36100AA clearly identified, this breaker is ready to shield motors, drives, and distribution networks from overloads and short circuits while keeping downtime to a minimum.

• Current rating: 36100 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HDA36100AA
• Brand: Square D

Why the 3-pole, 600 V design matters

In a three-phase system, a 3-pole breaker can disconnect all hot conductors simultaneously, ensuring rapid fault isolation and protecting connected equipment from imbalance, overheating, or damage. This Square D unit is purpose-built for industrial panels, motor control centers, and distribution boards where reliable three-phase protection is essential.

What makes THIS model stand out

• Dedicated three-phase protection with synchronized tripping to preserve system integrity and motor longevity.
• High-current readiness with a 36100 A rating, designed for substantial distribution needs and heavy-duty applications.
• 600 V rating provides a practical safety margin for common industrial power environments and equipment insulation classes.
• Durable Square D engineering tailored for tough industrial settings, delivering consistent performance over time.

Ideal use cases

• Industrial machinery and manufacturing lines powered by three-phase systems.
• Power distribution panels in factories or data centers requiring reliable fault isolation.
• Motor control centers and large-drive applications where coordinated tripping protects expensive equipment.

Compatibility and installation notes

This breaker is designed for Square D panels that accept HDA-series devices. When replacing an existing unit, verify panel compatibility with HDA36100AA and follow local electrical codes and the panel’s labeling. Always disconnect power and follow proper lockout-tagout procedures before servicing, and replace only with the correct listed part number.

Practical tips for best results

• Keep a spare HDA36100AA on hand for quick, code-compliant replacements, helping minimize downtime.
• Document part number and installation date for warranty and maintenance records.
• Store breakers in their original packaging to protect internal components from contamination and impact.