Square D HDA36090SPYP 90A 3-Pole 600 V Circuit Breaker

The Square D HDA36090SPYP is a purpose-built 90-amp, three-pole circuit breaker designed for robust protection in 3-phase, 600-volt electrical systems. Built to fit Square D panel configurations that accept HDA-series devices, this breaker delivers reliable overload and short‑circuit protection where high power and dependable disconnection are essential.

Key specifications

• Current rating: 90 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HDA36090SPYP
• Brand lineage: Square D (HDA series)

Why this 3-pole breaker matters

Designed for three-phase distribution, this 90-amp breaker ensures all three conductors trip together, reducing the risk of dangerous phase imbalances and facilitating safer maintenance. The 600-volt rating expands its suitability to industrial environments where higher-voltage equipment and feeders demand reliable protection. With a dedicated 3‑pole design, it provides coordinated protection for motors, conveyors, and other three-phase loads, helping prevent equipment damage from overloads and short circuits.

Ideal applications

• Three-phase industrial panels and switchgear in manufacturing facilities
• Motor feeders and distribution circuits in commercial or light industrial settings
• Main/disconnect positions in panelboards that require a 90 A, 3-pole, 600 V solution

Compatibility and installation

Specifically engineered to complement Square D installations, the HDA36090SPYP is designed for use in panels that accommodate HDA-series breakers. When installing, verify that the panel rating and enclosure are compatible with a 600 V, 3-pole device and follow standard electrical installation practices for three-phase systems. Ensure secure mounting and proper electrical connections per the manufacturer’s guidelines to maintain reliable protection and optimal performance.

Why choose Square D HDA36090SPYP

Choosing this model means selecting a trusted Square D solution with a precise 90 A capacity across all three poles, providing synchronized tripping essential for protecting high‑energy three-phase circuits. Its specific part number—HDA36090SPYP—ensures compatibility and consistency within your electrical infrastructure, delivering predictable protection and ease of maintenance for installers and facility managers alike.