Eaton | MD3450W | Circuit Breaker | 450A | 3-Pole | 600V

The Eaton MD3450W Circuit Breaker is a robust protection device engineered for demanding electrical distributions. Designed for use in maintenance, retrofit, and replacement projects, this 450A, 3-pole breaker delivers reliable three-phase protection in systems up to 600V. When your goal is to restore safe, uninterrupted power with equipment that matches exact specifications, the MD3450W stands out as a precise, dependable choice.

Key specifications

• Amperage: 450A
• Poles: 3-Pole
• Voltage: 600V
• Part number: MD3450W — the best reference for compatibility
• Intended use: maintenance, retrofit, and replacement in matching-spec installations

Why choose the MD3450W for your project

When upgrading or maintaining a panel, using the exact part reference is essential. The MD3450W is purpose-built to meet Eaton’s specifications, ensuring reliable tripping performance and seamless integration with compatible Eaton panels and switchgear. Its 450A capacity and 3-pole design are ideal for three-phase distribution in commercial or industrial environments operating up to 600V.

Fit, compatibility, and installation guidance

To ensure you select the correct breaker, verify that the system requires a 450A, 3-pole, 600V device and that the panel or switchgear lineage aligns with Eaton MD3450W components. Always confirm fit and ratings before ordering, and use the MD3450W as the primary reference for compatibility to minimize downtime and incompatibility risks.

Ideal applications and use cases

• Maintenance: replace aging or failing three-phase breakers without altering downstream protection schemes.
• Retrofit: upgrade existing installations that call for a 450A, 3-pole, 600V Eaton breaker with a like-for-like part.
• Replacement: restore original protection in panels that specify the MD3450W model.

With the MD3450W, you’re choosing a part that directly supports reliable, compatible protection in three-phase, 600V systems. Rely on Eaton’s established engineering standards and use the MD3450W part number as your clear reference point to ensure the right fit every time.