Square D | LC36400CBA | Circuit Breaker | 400A | 3-Pole | 600V

The Square D LC36400CBA circuit breaker is a purpose-built protection device for demanding three-phase systems. With a 400A rating across 3-Pole configuration and a 600V maximum, this unit is engineered to safeguard heavy-load feeders, motor circuits, and critical equipment in commercial and light-industrial environments.

Designed for maintenance, retrofit, and replacement projects where exact specs matter, the LC36400CBA delivers reliable, job-specific performance. The part number LC36400CBA is your most reliable reference for compatibility, so be sure to confirm fit and ratings before ordering.

• Amperage: 400A
• Poles: 3-Pole
• Voltage rating: 600V

This breaker is ideal for electrical professionals managing upgrades and servicing needs. Use it for retrofitting older panels to support higher load demands, replacing worn or obsolete breakers in industrial panels, or protecting large commercial installations that require precise three‑phase, 600V protection.

Why choose the Square D LC36400CBA? It’s a purpose-built match for Square D installations, offering alignment with legacy panel footprints and a proven protection profile for three‑phase circuits up to 600V. Rely on the exact part reference to minimize compatibility issues and expedite procurement on retrofit and replacement projects.

Practical tips for use and installation: verify the exact panel family and bus arrangement matches LC36400CBA, keep a spare on hand for routine maintenance, and follow appropriate electrical safety practices during installation. Remember: confirm fit and ratings before ordering to ensure seamless retrofit or replacement work.