Square D | LXI36400 | Circuit Breaker | 400A | 3-Pole | 600V

Meet the Square D LXI36400 circuit breaker—a robust 400A, 3-pole device rated for 600V that’s purpose-built for maintenance, retrofit, and replacement projects where exact specifications matter. This unit is designed to slot into compatible Square D systems with precision, keeping your electrical distribution running smoothly and safely.

The LXI36400 is a direct-fit solution for applications that demand a precise match to existing Square D equipment. Because the part number LXI36400 is the best reference for compatibility, this breaker helps you avoid guesswork when upgrading or restoring panels. Before you order, confirm that the fit and ratings align with your panel and load requirements.

Key specifications

• Amperage: 400 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Part number: LXI36400
• Brand: Square D

Why this LXI36400 stands out

• Direct-fit for Square D panels: Designed to align with existing Square D installations, reducing modification needs and installation time.
• Reliable replacement option: Ideal for refurbishing older systems or expanding capacity in compliant panel boards without sacrificing performance.
• Clear compatibility reference: Using the LXI36400 part number ensures you’re selecting the exact spec at a glance, minimizing misfits and returns.

Ideal use cases

• Maintenance and retrofit projects in industrial control panels and distribution centers
• Replacement of failing or obsolete 3-pole breakers in 600V systems
• Upgrading panel protection in mid-size to large electrical installations

Practical tips for buyers

• Always confirm fit and ratings before ordering—use the LXI36400 part number as your primary compatibility reference.
• Ensure your panel labeling and wiring arrangements accommodate a 3-pole, 600V unit to avoid wiring conflicts.
• Maintain proper safety procedures during installation and follow local electrical codes for replacement work.

When you need a dependable, exact-match breaker for Square D systems, the LXI36400 offers a clear, practical path to restoring protection and maintaining system performance. Ready to proceed with a direct-fit replacement? This LXI36400 matches the specific specs you require for 400A, 3-pole, 600V service.