Eaton LCL3400 Circuit Breaker, 400A, 3-Pole, 600V

The Eaton LCL3400 Circuit Breaker delivers robust, industrial-grade overcurrent protection for demanding electrical systems. Designed for service entrances, distribution feeders, and replacement projects, this 400 A, 3-pole unit is built to handle the rigors of busy industrial environments while keeping your equipment and people safe.

• 400 A amperage provides solid protection for main feeders and large motor circuits, reducing the risk of nuisance trips while preserving system integrity.
• 3 poles with a common-trip design ensures synchronized protection across all three phases in a 3-phase system.
• 600 V maximum operating voltage makes it suitable for a wide range of industrial applications and equipment configurations.
• Part of Eaton’s trusted protection lineup, engineered for reliability in maintenance, service, and replacement scenarios.
• Compatibility guidance: Verify fit by part number LCL3400 and align with your application requirements to ensure proper operation.

This breaker is ideal for scenarios like upgrading aging protection in factory panels, integrating with large drive systems, or completing new installations where dependable three-phase protection matters most. Its 400 A rating and 3-pole configuration help you simplify panel design and maintenance planning, so you can focus on uptime and safety.

Need help matching a part number or confirming compatibility? Message us and our team will assist with part-number verification and application requirements to ensure you choose the exact Eaton solution for your project.

Practical tips for use and installation:

• Before purchasing, cross-check the LCL3400 part number against your panel chassis and bus configuration to confirm fit.
• Maintain a small inventory of compatible spare breakers on site to minimize downtime during maintenance.
• Follow your facility’s electrical safety protocols and have a qualified electrician perform installation and testing.