Square D HDA36090AABC 36090A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36090AABC, a 3-pole 600 V circuit breaker built to safeguard three-phase power distribution in demanding industrial and commercial environments. With Part Number HDA36090AABC, this unit delivers reliable overcurrent protection when it’s most needed, reducing downtime and protecting expensive motors and equipment.

Key features that matter in the field

• Three-pole design supports full three‑phase protection in a single, compact unit.
• 600 V maximum rating suitable for industrial power systems and panel boards.
• Current rating: 36090 A (as specified) to handle substantial load requirements.
• Designed for straightforward replacement in compatible Square D panels, simplifying upgrades and maintenance.
• Durable construction for harsh environments and long service life.

Practical applications

Ideal for protecting three‑phase motors, conveyors, pumps, compressors, and other heavy equipment in manufacturing floors and large facilities. Use it as a main breaker in distribution panels or as a segment protection device in multi‑section panels. The 600 V rating makes it appropriate for facilities with higher voltage distribution while still fitting common Square D mounting footprints.

Why this matters for you

Choosing the HDA36090AABC means consistent trip performance, quick replacement when components wear, and alignment with your existing Square D ecosystem. By staying with the same family of breakers, you ensure electrical coordination across the panel, which helps prevent nuisance trips and simplifies maintenance planning.

Tips for installation and care

• Verify that HDA36090AABC is the correct replacement part for your panel by cross-checking the Part Number and labeling.
• Follow all local electrical codes and lockout/tagout procedures during installation and service.
• Prepare for service by inspecting conductors for wear, cleaning the interior, and ensuring clean, torque-compliant connections per manufacturer guidelines.
• Keep a spare HDA36090AABC on hand to minimize downtime during routine maintenance or unforeseen breaker trips.