Eaton | LDC3400Y | Circuit Breaker | 400A | 3-Pole | 600V

Eaton’s LDC3400Y Circuit Breaker delivers dependable, high-capacity protection for demanding electrical systems. Designed for maintenance, retrofit, and replacement projects where exact specifications matter, this 400 A, 3-pole device safeguards three-phase equipment and feeders operating up to 600 V.

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

With a 3-Pole configuration, the LDC3400Y provides synchronized protection across all conductors in a three-phase system, helping prevent equipment damage and unplanned downtime. Its 600 V rating aligns with a wide range of industrial and commercial applications, while the 400 A capacity supports high-load feeders without unnecessary interruptions.

Ideal use scenarios

• Maintenance and replacement in panels and switchgear that require a precise 400 A, 3-Pole, 600 V protection solution
• Retrofit projects that need to preserve existing wiring and mounting while upgrading to current Eaton standards
• Strategic spare-part planning for critical distribution systems to minimize downtime during service events

Compatibility and ordering guidance

Note: Confirm fit and ratings before ordering. The part number LDC3400Y is the best reference for compatibility, ensuring you match the exact frame and trip characteristics your installation requires.

For best results, verify that your panel or switchgear supports a 400 A, 3-Pole, 600 V configuration and that the LDC3400Y’s trip characteristics meet your protection plan. By aligning these specifications, you’ll achieve reliable overcurrent protection and smoother maintenance cycles in your electrical distribution system.