Square D LRA36600U44X - 600 A, 3-Pole Plug-In Circuit Breaker | AmpState

Square D LRA36600U44X is a 600A, 3-pole plug-in molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Its fast plug-in connection enables quick installation and trouble-free replacements, minimizing panel downtime during upgrades or service work. The thermal-magnetic trip unit delivers stable, repeatable protection across a wide range of currents and environmental conditions, helping prevent nuisance trips while safeguarding valuable equipment.

Why this 600A 3-Pole Plug-In Breaker stands out

• Fast plug-in installation and easy replacement reduce installation time and service interruptions in busy electrical rooms.
• Thermal-magnetic trip unit provides responsive protection for both steady loads and fault conditions, maintaining reliable circuit safety across fluctuating temperatures.
• OEM compatibility designed to work with matching Square D OEM load centers and panelboards, ensuring proper fit, electrical characteristics, and straightforward integration.
• Three-pole design delivers comprehensive protection for three-phase circuits, ideal for larger feeders, commercial equipment, and light industrial applications.
• Molded case construction combines rugged durability with dependable performance in demanding environments.

Ideal applications and use cases

• Commercial panelboards and light industrial distribution where large-duty protection is required for three-phase feeders or main service disconnects.
• Residential developments or multi-tenant buildings that demand robust protection for large branch circuits and heavy equipment housings.
• Panel upgrades or service replacements where quick, reliable plug-in installation minimizes downtime.

Technical snapshot

• Manufacturer: Square D
• Part number: LRA36600U44X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 600A
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

For installations that demand robust, high-current protection with quick serviceability, the Square D LRA36600U44X delivers the reliability and compatibility you need. Whether you're upgrading a commercial loadcenter, feeding critical equipment in a light industrial setting, or replacing an aging breaker, this 600A, 3-pole plug-in solution is designed to keep your electrical system safe, compliant, and performing at its best.