Eaton | KDC3400W | Circuit Breaker | 400A | 3-Pole | 600V

The Eaton KDC3400W Circuit Breaker delivers dependable protection for high-demand electrical systems. With a 400A rating, 3-pole configuration, and a 600V operating capability, this unit is engineered for robust performance in maintenance, retrofit, and replacement projects where precise compatibility matters.

Key Specifications

• Amperage: 400A
• Poles: 3-Pole
• Voltage: 600V
• Part Number: KDC3400W

Why choose the Eaton KDC3400W

Designed to align with your existing electrical infrastructure, the KDC3400W focuses on exact compatibility and reliable circuit protection for three-phase systems. Its 400A capacity makes it suitable for mid-to-large distribution panels where sustained current demands and quick isolation are essential. By matching the KDC3400W to the right panel or bus layout, you minimize retrofit risk and downtime while preserving system safety standards.

Ideal use cases

• Maintenance work on industrial power distribution where a precise 400A, 3-pole, 600V breaker is required
• Retrofits to upgrade legacy installations to a current, standardized Eaton component
• Replacement of worn or failed breakers in commercial or manufacturing environments

How to verify compatibility

Before ordering, confirm the fit and ratings align with your panel and system design. The part number KDC3400W is the most reliable reference for compatibility, ensuring the breaker will function correctly within your 3-phase 600V setup.

Practical considerations

• Use in environments where precise circuit protection and quick isolation are critical for operational continuity
• Cross-reference with existing Eaton components to streamline ordering and inventory management
• Prepare for installation by verifying the panel’s maximum amperage and allowable 600V circuits to avoid overloads