Square D | LE36450LS | Circuit Breaker | 450A | 3-Pole | 600V

Introducing the Square D LE36450LS circuit breaker—a purpose-built, high-capacity solution for industrial electrical systems that demand dependable overcurrent protection. This exact model is tailored for maintenance, retrofit, and replacement projects where matching specifications is essential, ensuring a seamless fit with existing Square D panels and bus configurations.

Key specifications

• Amperage: 450A
• Poles: 3-Pole
• Voltage rating: 600V
• Part number: LE36450LS

Why this model matters

In environments where downtime is costly and safety matters, using the exact spec breaker matters. The LE36450LS is designed to provide compatible protection characteristics for three-phase systems at 600V, making it a reliable choice for feeders and main circuit protection in larger electrical distribution setups. By matching the part number, you eliminate guesswork and reduce the risk of incompatibility that can occur with generic replacements.

Compatibility and fit

Before ordering, confirm that this part aligns with your existing equipment by verifying the panel’s required ampacity, three-pole configuration, and 600V rating. The part number is the best reference for compatibility, so cross-check LE36450LS against your panel schedule and manufacturer documentation to ensure a precise match.

Ideal use cases

• Maintenance and service upgrades in industrial facilities where a direct 450A, 3‑pole, 600V substitute is needed.
• Retrofit projects that require restoring original protection characteristics without altering panel design.
• Replacement for aging or failed breakers within large commercial or industrial distribution panels.

Practical guidance for deployment

Plan a careful exchange by de-energizing the circuit and following your facility’s lockout/tagout procedures. Have the correct torque specifications and mounting hardware on hand as specified by your panel manufacturer. Maintaining strict adherence to compatibility helps preserve safety and performance across the distribution system.

What you gain

Providing dependable, exact-spec protection for demanding three-phase circuits, the LE36450LS reduces replacement guesswork and supports consistent electrical performance in heavy-duty applications. With the right match, you can shorten downtime, ensure continuity of service, and maintain compliance with your equipment’s design intent.