Square D HGA36110UO 110A 3-Pole 600 V Circuit Breaker

Protect your three‑phase power with precision using the Square D HGA36110UO 110A 3-Pole 600 V Circuit Breaker. Built for demanding industrial environments, this HGA-series MCCB provides reliable protection for feeders and motors in 600 V systems, helping you prevent costly outages and equipment damage.

Key specifications

• Current rating: 110 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36110UO
• Series: HGA molded‑case circuit breaker

Why this breaker stands out

The Square D HGA36110UO is engineered to deliver dependable three‑phase protection where it matters most. Its robust construction is designed to withstand the rigors of industrial panels, while the 110 A rating provides solid protection for mid‑sized feeders and motor circuits. With a 3‑pole configuration, it safeguards all three phases simultaneously, reducing the risk of unbalanced loads and equipment stress in 600 V networks. This isn’t a generic breaker—it's a purpose‑built solution from Square D that integrates smoothly with HGA‑series panels and other compatible Square D distribution gear.

Ideal applications

• Three‑phase feeders feeding motors, pumps, fans, conveyors, and compressors in manufacturing facilities
• Primary or secondary protection for distribution panels in commercial or light industrial settings
• Mid‑size industrial installations where 600 V service is standard and reliable trip characteristics are critical

Installation, compatibility, and practical tips

Designed for use in Square D environments, the HGA36110UO is best installed in panels that accept HGA‑series breakers. Before installation, confirm panel compatibility with HGA‑series MCCBs and follow all local electrical codes. This 3‑pole device protects all phases of a 600 V circuit, so ensure the wiring and termination are suitable for three‑phase, 110 A applications. Keep a spare on hand for quick swaps to minimize downtime after a fault or routine maintenance.

What problems it helps solve

• Prevents simultaneous overloads across all three phases, protecting motors and feeders from damaging overcurrents
• Offers a reliable, code‑compliant solution for centralized distribution in 600 V systems
• Supports faster recovery after trips, reducing unplanned downtime in critical production lines

Why choose Square D for this role

As a part of the Square D line, the HGA36110UO brings compatibility, traceable build quality, and dependable performance to industrial electrical distributions. Its 110 A rating and 3‑pole design address real‑world needs—protecting expensive equipment while keeping service interruptions to a minimum. When you need a trusted, purpose‑built breaker for 600 V, this model delivers clear value through robust protection and straightforward integration.