Square D | LXP36400 | Circuit Breaker | 400A | 3-Pole | 600V

Meet the Square D LXP36400 circuit breaker—an exact-match 400A, 3-pole, 600V protection device designed for demanding electrical environments. Built for maintenance, retrofit, and replacement needs where matching specs matter, this breaker slips into compatible Square D panelboards and switchgear with minimal downtime, helping you keep critical power flowing safely and reliably.

• Amperage: 400A
• Poles: 3-Pole
• Voltage rating: 600V
• Part reference: LXP36400
• Ideal applications: Maintenance, retrofit, and replacement in compatible Square D systems

Why this exact spec matters for your setup:

• Precise compatibility: When your panel or switchgear requires a 3-pole, 600V breaker at 400A, the LXP36400 is designed to fit the job, reducing installation friction and ensuring proper fitment.
• Streamlined procurement: Use the exact part number to verify compatibility, shortening lead times and minimizing procurement guesswork during upgrades or repairs.
• Reliability you can trust: As a Square D solution, it delivers dependable electrical protection aligned with established industry standards in commercial and industrial applications.

Fitment and installation notes (practical guidance):

• Always confirm fit and ratings before ordering. The LXP36400 part number is the most reliable reference for compatibility with your existing equipment.
• Designed for 3-phase electrical systems commonly found in commercial and light-industrial settings operating at 600V.
• Coordinate with a licensed electrician and follow all safety protocols for de-energizing equipment, proper wiring, and secure mounting during installation.

Ideal use cases:

• Retrofits when upgrading aging protection devices in legacy Square D installations
• Repairs and replacements that require exact 400A, 3-pole, 600V specifications to restore protected circuits
• Maintenance cycles in facilities where consistent protection and minimal downtime are critical

In short, the LXP36400 isn’t just a replacement part—it’s a precise, reliable solution for maintaining robust electrical protection across your 600V, three-phase power distribution. With its exact amperage, pole configuration, and voltage rating, you gain predictable performance, quicker installs, and continued safety for your essential systems.