Square D HDA36090SH 90A 3-Pole 600 V Circuit Breaker

The Square D HDA36090SH is a rugged 90-amp, 3-pole circuit breaker engineered for demanding 600 V power distribution. With the exact part number HDA36090SH, this device is built to deliver reliable protection for three-phase circuits in commercial and industrial environments. Its three-pole design ensures simultaneous disconnection across all phases, enhancing safety and safeguarding expensive motors, drives, and feeders.

Why this breaker stands out

• 90 A current rating provides precise overload protection for high-load, three-phase circuits without nuisance trips.
• 3-pole construction guarantees coordinated disconnection of all phases in 3-phase systems, reducing fault risk and voltage imbalances.
• 600 V voltage rating supports higher voltage distribution networks common in commercial and light industrial settings.
• Square D compatibility designed to integrate with Square D panels, enclosures, and distribution gear for a seamless replacement or upgrade.
• Reliable, field-proven protection built to handle frequent cycling and demanding operating environments, helping minimize downtime and protect critical equipment.

Ideal applications

• Three-phase motor feeders in manufacturing lines, conveyors, and processing equipment
• HVAC and ventilation systems in large facilities
• Power distribution feeders in commercial buildings and light industrial spaces
• Replacement or upgrade in existing Square D panel boards to maintain system protection integrity

Practical considerations and tips

• Match the exact part number HDA36090SH when replacing or stocking spares to ensure compatibility and electrical performance.
• Confirm the breaker’s 3-pole configuration aligns with your panel’s bus arrangement for proper installation.
• When replacing older units, inspect panel labeling and ensure the new device’s trip characteristics suit your load profile to avoid nuisance trips.
• Handle with standard electrical safety procedures and torque specifications for secure bus bar connections to maintain reliable operation.

Equip your distribution system with the Square D HDA36090SH for dependable 90A, three-phase protection at up to 600 V. It’s a precise, purpose-built choice for maintaining uptime and safeguarding critical equipment in demanding electrical environments.