Square D LGA36600U31X - 600 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Square D LGA36600U31X is a 600 A, 600 V, 3-pole plug-in molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Its fast plug-in connection simplifies installation and replacement, helping electrical projects stay on schedule without compromising safety.

• Heavy-duty current rating: 600 A, suitable for demanding commercial and light-industrial applications.
• Three-pole design: Balanced protection across all three phases in 3-phase systems.
• Thermal-magnetic trip unit: Combines accurate overload protection with rapid short-circuit clearing for reliable, repeatable performance.
• Plug-in mounting: Quick, tool-efficient installation and straightforward replacements in compatible OEM panelboards and loadcenters.
• OEM compatibility: Specifically designed to work with matching Square D panelboards and load centers for seamless integration.
• Versatile applications: Ideal for residential, commercial, and light industrial environments where robust branch-circuit protection is required.

Why this breaker stands out: the plug-in form factor eliminates complex wiring and lug connections, reducing installation time and potential torque-related inconsistencies. The thermal-magnetic protection strategy provides dependable response to both sustained overloads and sudden fault currents, safeguarding wiring insulation, devices, and downstream equipment.

Technical snapshot

• Manufacturer: Square D
• Part number: LGA36600U31X
• Type: Thermal-magnetic molded case circuit breaker
• Poles: 3
• Amperage rating: 600 A
• Voltage rating: 600 V
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and scenarios: upgrade or add protection to large-panel installations in commercial spaces, light-industrial facilities, or mixed-use offices where high-current, reliable disconnection is critical. It’s also well-suited for panelboard modernization projects that require a direct, compatible replacement or an efficient plug-in swap to minimize downtime and wiring rework.

Tip for optimal results: verify panelboard compatibility with the Square D LGA36600U31X prior to installation, and plan a swappable replacement path to minimize electrical downtime during service upgrades or expansion projects.