Square D HGA36110UD 110A 3-Pole 600 V Circuit Breaker

Square D HGA36110UD 110A 3-Pole 600 V Circuit Breaker delivers dependable protection for three-phase electrical systems. Specifically designed for commercial and industrial panels, this 110 A unit from Square D's HGA family provides reliable interruption of fault currents and overloads, helping keep equipment safe and downtime to a minimum.

Key specifications at a glance

• Current rating: 110 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36110UD

Why this 3-Pole design matters

• Three-pole construction protects all three phases in a balanced 3‑phase circuit, ensuring coordinated disconnection in the event of an overload or fault.
• Ideal for three-phase motor circuits, conveyors, pumps, HVAC equipment, and other equipment common in warehouses, manufacturing floors, and data centers with 600 V distribution networks.
• Designed to fit Square D panels and enclosures that accept HGA-series breakers, helping streamline replacement and panel upgrades.

Practical use cases

• Replacing a failed breaker in an existing 3‑phase 600 V distribution panel to restore reliable protection and minimize downtime.
• Upgrading older, lower-current protection to a robust 110 A 3‑pole solution for increased service reliability in motor loads.
• Integrating into new commercial or light industrial installations where a 600 V three-phase protection device is required.

Installation and maintenance tips

• Ensure the breaker is compatible with your panel's frame and the HGA-series lineup before installation.
• Power down the panel and follow all electrical safety practices during replacement or installation.
• Consult the panel manufacturer’s guidelines for torque and termination details to ensure secure connections.

Who should consider this breaker

• Electrical contractors and maintenance teams managing three-phase systems up to 600 V.
• Facility managers seeking reliable, straightforward replacement parts for Square D panels.
• Panel builders sourcing compatible 110 A, 3‑pole 600 V protection for commercial or light industrial projects.