Square D LC36300 - 300 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D LC36300 — a robust 300 A, 600 V, 3-pole plug-in molded case circuit breaker designed for dependable branch circuit protection in panelboards and load centers. Its fast plug-in connection makes installation and replacement quick, reducing downtime when upgrading or servicing electrical panels.

• Fast plug-in connection enables rapid installation and straightforward replacements, ideal for busy electrical rooms and retrofit projects.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining magnetic instantaneous response with thermal overload sensing, helping prevent nuisance trips while safeguarding circuits during faults.
• OEM-compatible designed to be compatible with matching Square D load centers and panelboards, ensuring a coordinated protection strategy across your system.
• Versatile application suited for residential, commercial, and light industrial environments that require reliable branch circuit protection and short-circuit protection.
• Three-pole, 300 A, 600 V design supports multi-wire circuits and higher-demand panels, making it a solid choice for main or sub-panel protection.

Why the LC36300 matters in your electrical system

Protection that’s precise, dependable, and easy to service is essential for any panel upgrade or installation. The LC36300’s plug-in form factor minimizes termination steps, while the thermal-magnetic trip unit ensures rapid response to faults and consistent performance across varying loads and ambient conditions. This combination translates to fewer downtime events and stronger protection for your circuits.

Technical snapshot

• Manufacturer: Square D
• Part Number: LC36300
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 300 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for electrical contractors, facilities managers, and panel modernization projects, the Square D LC36300 offers reliable protection that pairs seamlessly with compatible load centers and panelboards. When you need a proven, plug-in solution for high-current, multi-wire circuits, this 3-pole breaker delivers consistent performance and straightforward serviceability.