Square D HGA36110UN 110A 3-Pole 600 V Circuit Breaker

Square D HGA36110UN 110A 3-Pole 600 V Circuit Breaker delivers dependable three‑phase overcurrent protection for demanding electrical systems. This 110-amp, three-pole device (Part Number HGA36110UN) is built to perform in panels and distribution setups that require robust protection at higher voltages.

Key specifications

• Current rating: 110 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36110UN
• Brand: Square D

Ideal applications

Designed for three‑phase power systems, this breaker is well suited for commercial and light industrial environments. Use it to protect feeders and motors, pumps, conveyors, and other equipment that rely on reliable three‑phase distribution. With a 600 V rating, it fits higher‑voltage panel workloads while maintaining precise, predictable protection for your electrical distribution network.

Why this model stands out

• Directly aligns with Square D panel configurations that support HGA series breakers, simplifying replacement and stocking.
• The 110 A rating provides targeted protection for high‑current three‑phase circuits without unnecessary nuisance tripping.
• Clear, consistent part identification (HGA36110UN) facilitates fast ordering and compatibility checks during maintenance or upgrades.

Installation and compatibility tips

Install this circuit breaker in a compatible Square D panelboard designed for HGA-series devices. Confirm your system is configured for three‑phase operation and within the 600 V maximum rating. When replacing an existing unit, match the 110 A, 3‑pole specification to preserve proper protection across critical circuits. Adhere to local electrical codes and consult a licensed electrician for safe, compliant installation.