Square D | LXI36400G | Circuit Breaker | 400A | 3-Pole | 600V

Meet the Square D LXI36400G circuit breaker—a purpose-built protection device for demanding three‑phase power systems. Rated at 400A with a 3‑pole configuration and a 600V maximum, this unit delivers reliable circuit interruption when it matters most. Designed for maintenance, retrofit, and replacement projects, LXI36400G is the precise compatibility your panel demands.

• Amperage: 400A — capable of handling high-current feeder and distribution circuits.
• Poles: 3-Pole configuration for standard three‑phase systems.
• Voltage: 600V maximum, suitable for industrial and commercial power distribution.
• Part reference: LXI36400G ensures you’re matching the exact spec for compatible Square D panels and LX frame enclosures.
• Use case versatility: Ideal for maintenance, retrofit, and replacement where exact ratings and form factor matter.

Why choose LXI36400G for your project? This breaker is built to slot into existing Square D installations without hardware changes, preserving your panel’s protective coordination while minimizing downtime. Its 400A rating supports robust electrical feeders, while the 3‑pole design provides reliable protection across all three phases, a must-have in heavy machinery, manufacturing lines, and large commercial systems.

Who benefits most from this part

• Facilities upgrading service entrances or distribution panels that require a like-for-like replacement.
• Industrial environments with high-demand machines and three‑phase loads.
• Maintenance teams performing retrofits or panel modernization projects that must meet exact specifications.

Practical notes to maximize value

• Always confirm fit and ratings against your panel’s manufacturer documentation before ordering.
• Use the part number LXI36400G as the best compatibility reference to avoid mismatched frames or trip characteristics.
• Coordinate with your project’s protection strategy to ensure the breaker’s interrupting capacity aligns with system fault current levels.
• Store spares in a clean, dry environment and label them with the part number for quick future replacements.

Designed for reliability and engineered to support smooth installations, the Square D LXI36400G is the trusted choice when your goals are safety, uptime, and long-term compatibility in 600V, three‑phase systems. Choose this part to ensure your retrofit or replacement aligns precisely with existing protection schemes and panel architecture.