Eaton | HLDB3400X | Circuit Breaker | 400A | 3-Pole | 600V

Introducing the Eaton HLDB3400X Circuit Breaker—the dependable choice for high-demand electrical systems that need precise current protection and easy replacement. With a 400A rating across 3 poles and a 600V maximum, this unit is engineered to handle the loads of modern three-phase distribution while maintaining clear, repeatable trip characteristics.

Key features that matter in real-world installations:

• 400A continuous current rating for robust main protection
• 3-pole design to safeguard three-phase circuits
• 600V maximum operating voltage suitable for commercial and industrial panels
• Exact compatibility driven by part number HLDB3400X, ideal for retrofit and replacement—confirm fit and ratings before ordering

Ideal uses and scenarios:

• Maintenance: swap-in replacement parts that match existing panel specifications to minimize downtime
• Retrofit: upgrade or modernize electrical distribution without reconfiguring surrounding hardware
• Repairs: address tripped circuits quickly by replacing a failed breaker with the same amperage and pole configuration

Why this HLDB series breaker stands out:

• Reliability in industrial environments: designed to sustain repeated operation under rigorous loads
• Clear compatibility path: using the exact part number HLDB3400X reduces questions about fit and ratings
• Three-phase protection aligned with common commercial power systems, helping prevent unbalanced loads and equipment damage

Practical guidance for ordering and installation:

• Before you buy, verify that HLDB3400X matches your panel’s model and rating requirements—this part number is the best reference for compatibility
• Check that your system is a three-phase setup compatible with a 400A, 3-pole, 600V breaker
• Prepare for replacement by aligning mounting style and bus connections with the existing breaker to minimize install time