Square D HGA36110SK 110A 3-Pole 600 V Circuit Breaker

Square D HGA36110SK 110A 3-Pole 600 V Circuit Breaker delivers dependable overcurrent protection for three-phase electrical systems. With a 110 A rating across three poles and a 600 V maximum voltage, it helps keep motor loads, feeders, and equipment safeguarded against overloads and short circuits in demanding environments.

Designed for use in compatible Square D panels, the HGA36110SK is a compact molded-case breaker built for reliable performance in commercial and light industrial settings. It provides consistent trip behavior across all three phases, helping maintain balanced protection in three-phase circuits.

Key specifications

• Current rating: 110 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36110SK

Practical applications and benefits

• Three-phase motor circuits (pumps, fans, conveyors) require synchronized protection across all phases; this breaker delivers that protection in a single device.
• Ideal for distribution panels where you need reliable protection for feeders feeding multiple branch circuits.
• Compact form factor fits a range of Square D panel configurations, simplifying panel layout and maintenance.

Installation and use tips

• Ensure compatibility with your panel model and the HGA-series family before installation.
• Plan for proper lockout/tagout procedures during replacement or service.
• Use the breaker to interrupt fault current and prevent damage to motors, wiring, and downstream devices.