Square D HDA36090UAYP 90A 3-Pole 600 V Circuit Breaker

Square D HDA36090UAYP is a dependable 90 A, 3-pole circuit breaker engineered for solid overcurrent protection in three-phase electrical systems. With a 600 V rating, this unit is built to safeguard distribution panels and industrial equipment from overloads and short circuits, helping maintain safe and reliable power delivery in demanding environments.

• Current rating: 90 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HDA36090UAYP
• Brand: Square D

Why choose this 3-pole design matters: it provides balanced protection across all three phases of a three‑phase system, preventing uneven loads that can cause equipment stress or failure. This makes it an ideal choice for protecting motors, pumps, conveyors, HVAC systems, and other three-phase loads within commercial or light industrial panel installations.

Key use cases include protecting:

• Three-phase motor circuits in manufacturing or processing facilities
• Distribution panels in warehouses, data centers, or large offices
• HVAC equipment and controls that run on three-phase power

Practical considerations: ensure compatibility with your panel and bus arrangement when selecting HDA-series devices, and install in accordance with local electrical codes and manufacturer guidelines. This model is designed to integrate into Square D panels and configurations that support a 3-pole, 600 V protection scheme, delivering reliable, straightforward protection for critical equipment.

For electricians and facilities managers seeking clear, robust three-phase protection, the Square D HDA36090UAYP 90A 3-Pole 600 V Circuit Breaker offers precise current control, dependable trip performance, and a streamlined path to safer, more efficient electrical systems.