Square D LLA36600U43X - 600 A, 3-Pole Plug-In Circuit Breaker | AmpState

Square D LLA36600U43X is a 600 A, 3-pole plug-in molded case circuit breaker designed for dependable branch circuit protection in panelboards and load centers. Its fast plug-in connection enables quick installation and straightforward replacements, reducing downtime during panel upgrades or routine service.

• 600 A, 3-pole capacity: handles demanding three-phase loads in commercial and light industrial environments, while providing reliable protection for feeder and distribution circuits.
• Thermal-magnetic trip unit: delivers stable, repeatable protection with accurate overload and short-circuit response to minimize equipment damage.
• Plug-in mounting: simplifies field installation and quick replacement, helping technicians complete panel work with minimal downtime.
• OEM-compatible design: engineered to fit matching Square D load centers and panelboards, ensuring proper electrical coordination and a secure fit.
• Versatile applications: suitable for residential, commercial, and light industrial wiring scenarios that require robust branch-circuit protection.

Why this breaker stands out

Designed to work seamlessly with Square D systems, the LLA36600U43X delivers precise trip performance and reliable protection where uptime matters. Whether you’re upgrading an aging panel, planning a new installation, or stocking to minimize downtime on service calls, this 600 A, 3-pole plug-in unit provides a practical, long-term solution for complex electrical distributions.

Technical snapshot

• Manufacturer: Square D
• Part Number: LLA36600U43X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 600 A
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

For installers and facilities managers seeking dependable protection with rapid serviceability, the Square D LLA36600U43X is a fitting choice. Available through AmpState, this breaker pairs with compatible OEM panel boards to deliver consistent performance and straightforward maintenance in demanding electrical environments.