Square D | LCL36450 | Circuit Breaker | 450A | 3-Pole | 600V

Meet the Square D LCL36450 circuit breaker—a robust, purpose-built protection device engineered for demanding 600V, 3-phase electrical systems. With a 450A rating and a 3-pole configuration, this breaker is designed to safely shield heavy loads while enabling quick maintenance, retrofit, and replacement scenarios. When exact specifications matter, the LCL36450 is a precise match for compatible Square D installations.

What makes the LCL36450 a smart choice

• Accurate fit for high-current, 3‑phase power — 450A, 3-pole configuration tailored to demanding industrial and commercial circuits.
• Clear reference for compatibility — the part number LCL36450 is your best reference to ensure you’re selecting the right breaker for your panel or equipment.
• 600V operating capacity — designed to handle the voltage levels found in larger electrical systems while providing dependable protection.
• Maintenance-ready — ideal for routine replacements, retrofits, and uprates where matching specs minimizes downtime and guesswork.

Core specifications

• Amperage: 450 A
• Poles: 3-Pole
• Voltage: 600 V
• Part number: LCL36450
• Brand: Square D

Ideal use cases

• Replacing a failed or worn-out circuit breaker in a 3‑phase, 600V distribution panel.
• Retrofits where existing equipment requires an exact 450A, 3‑pole solution to maintain system integrity.
• Maintenance stocking for facilities with heavy electrical loads and critical uptime requirements.
• Equipment upgrades that demand a precise compatibility reference to avoid panel mismatches.

Fit, compatibility, and ordering tips

Before ordering, confirm fit and ratings using the part number, as it’s the most reliable compatibility reference. If you’re updating or replacing a component in a Square D system, the LCL36450 is the directly referenced model for 450A, 3-pole, 600V configurations. For best results, match this part to your existing panel or equipment’s specifications and service requirements, then proceed with installation by a qualified professional.