Square D HDA36125AA 36125A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36125AA 36125A 3-Pole 600 V Circuit Breaker — a purpose-built protective device designed for demanding, three-phase power distribution. With Part Number HDA36125AA, this breaker is a precise match for compatible Square D panelboards and switchgear, ensuring reliable protection where it matters most.

Key specifications at a glance

• Poles: 3
• Voltage rating: 600 V
• Current rating: 36125 A
• Part number: HDA36125AA
• Product title reference: Square D HDA36125AA 36125A 3-Pole 600 V Circuit Breaker

The 3-pole design provides balanced protection across all three phases, which is essential for protecting motors, drives, and other three-phase equipment from overloads and faults. The 600 V rating makes this breaker suitable for industrial power networks that operate at higher voltages, helping to contain fault currents and minimize damage to downstream components.

Why this breaker matters for your operation

In rugged manufacturing floors, HVAC systems, and heavy electrical installations, reliable overcurrent protection translates to less downtime and longer equipment life. This HDA-series breaker delivers crisp, predictable trip performance when limits are exceeded, enabling safe isolation of faulty circuits without compromising adjacent feeders. Its 36125 A current rating is tailored for substantial loads, giving you a robust safeguard for critical lines.

Use cases and practical applications

• Protection for three-phase feeders feeding motors, compressors, conveyors, and processing equipment
• Replacement part in compatible Square D panels to maintain consistent protection and system reliability
• Part of a preventive maintenance plan to minimize unplanned outages in industrial facilities

Installation and compatibility notes

Ensure your electrical panel or switchgear supports HDA-series breakers and that the system voltage aligns with the 600 V rating. Follow all local codes and the manufacturer’s installation guidelines when replacing or stocking spares. Using the correct part number, HDA36125AA, helps preserve warranty coverage and ensures coordinated protection across your distribution network.

Whether you’re stocking for maintenance, upgrading a legacy panel, or building out a spare parts kit for critical infrastructure, the Square D HDA36125AA 36125A 3-Pole 600 V Circuit Breaker delivers dependable three-phase protection with a straightforward, compatible fit for your Square D ecosystem.