Square D | LCF36300 | Circuit Breaker | 300A | 3-Pole | 600V

Square D LCF36300 Circuit Breaker delivers dependable overcurrent protection for 600V, three-phase panels. This 300A, 3-Pole unit is engineered for durability and precise performance, making it an ideal choice for maintenance, retrofit, and replacement projects where exact specs are essential.

Key specifications

• Amperage: 300A
• Poles: 3-Pole
• Voltage: 600V
• Part reference: LCF36300

Why this matters

In a 600V distribution system, fast, reliable protection minimizes equipment damage, downtime, and service interruptions. The Square D LCF36300 aligns with common panel configurations, delivering predictable trip characteristics and straightforward integration into existing electrical infrastructure.

Ideal use cases

• Maintenance outages and service work in commercial or light industrial environments operating at 600V
• Retrofit projects requiring a direct, compatible 300A, 3-Pole, 600V replacement
• Replacement for aging Square D installations to restore original protection profiles and panel performance

Compatibility and installation tips

Always confirm fit and ratings before ordering. The LCF36300 part number is the most reliable reference for compatibility with your specific panel or enclosure. When installing, follow your panel manufacturer’s torque specifications and safety procedures, and ensure the breaker’s mounting footprint matches the existing lugs and mounting rails.

What sets it apart

Unlike generic breakers, the Square D LCF36300 is designed to integrate seamlessly with Square D panels and distribution systems, supporting consistent labeling, documentation, and testing processes. This thoughtful compatibility reduces troubleshooting time and helps preserve the panel’s original protection strategy.