Eaton KDB2400M01S09Y07 400A 2-Pole 600 V Circuit Breaker

Meet the Eaton KDB2400M01S09Y07 400A 2-Pole 600 V Circuit Breaker—the dependable protection your high-capacity electrical systems demand. Built on Eaton's trusted KDB platform, this 400-amp device disconnects both hot lines simultaneously, delivering precise overcurrent protection and enhanced safety for multi-conductor circuits.

• Current rating: 400 A
• Poles: 2
• Voltage rating: up to 600 V
• Part number: KDB2400M01S09Y07
• Brand/series: Eaton KDB series

Why this model matters

Choosing a two-pole design means both conductors trip together, which is essential for safely isolating multi-wire circuits and reducing arc risk. The 600 V rating covers a wide range of industrial and commercial power distribution scenarios, making this breaker a versatile choice for feeders, subpanels, and service-entry applications in warehouses, manufacturing facilities, and large-scale installations. Reliable Eaton engineering translates to predictable trip performance and long-term durability in demanding environments.

Ideal use cases

• Main feeder protection for industrial distribution panels requiring a 400 A device
• Upgrades or replacements in existing Eaton-installed systems to maintain system integrity
• Protection for large equipment and feeders where coordinated disconnection improves safety and reduces downtime

Installation and compatibility

Designed to integrate with Eaton panels and accessories, this breaker aligns with Eaton’s protective ecosystem for streamlined maintenance and future upgrades. When installing, ensure compatibility with your panel’s bus configuration and adhere to manufacturer torque and installation guidelines to maintain optimal performance.

Practical considerations

If your electrical design calls for robust, two-pole overcurrent protection at 400 A, across voltages up to 600 V, the KDB2400M01S09Y07 delivers a precise, reliable solution within Eaton’s comprehensive protection lineup. This part number ensures you’re selecting an exact fit for Eaton-compatible panels and accessories, helping simplify diagnostics, replacements, and service planning.