Square D HGA36110UAYP 110A 3-Pole 600 V Circuit Breaker

The Square D HGA36110UAYP is a rugged 110 A circuit breaker designed to protect three‑phase power systems with reliability and precision. With a 600 V rating, this unit is built to safely interrupt fault currents and shield downstream equipment in demanding industrial and commercial environments.

• Current rating: 110 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36110UAYP

Why this 3‑pole breaker matters for your system

Three‑pole protection ensures all phases disconnect together, reducing the risk of phase-to-phase faults and uneven loading on three‑phase equipment. The HGA36110UAYP is purpose‑built for feeders and motor circuits that require solid overcurrent protection across the entire 3‑phase network, making it an essential component in reliable power distribution.

Ideal use cases

• Main feeders and branch circuits in industrial facilities that operate three‑phase motors and equipment up to 110 A.
• Upgrades or replacements in Square D panels where a precise fit and consistent performance are required.
• Commercial electrical systems with higher voltage requirements where 600 V protects distribution panels and equipment banks.

Key benefits you’ll notice

• Precise three‑phase protection: Keeps all phases in sync, improving safety and reliability for high-load applications.
• Compact, compatible design: Fits standard Square D installations, reducing replacement downtime and ensuring straightforward maintenance.
• High‑voltage readiness: The 600 V rating supports modern industrial and commercial distribution needs without compromising protection.
• Durable, predictable performance: Engineered for consistent tripping behavior under overloads and faults, helping minimize equipment wear and unexpected outages.

Practical installation and care tips

• Ensure compatibility with your Square D panel and mounting frame before installation to maintain proper electrical clearances and bus compatibility.
• Follow the panel manufacturer’s torque specifications for terminal connections to maintain secure, low‑impedance terminations.
• Use this breaker for circuits that genuinely require 3‑phase protection up to 110 A and up to 600 V, avoiding undersized or oversized replacements.

For engineers and technicians stocking reliable, brand‑specific protection, the Square D HGA36110UAYP offers clear advantages: a precise 110 A capacity, three‑pole construction for balanced phase protection, and a 600 V maximum system rating that aligns with many industrial distribution scenarios. Choose this part when you need a dependable, compatible solution that aligns with Square D panels and delivers strong, predictable overcurrent protection for your three‑phase loads.