Eaton | HKD3350X | Circuit Breaker | 350A | 3-Pole | 600V

Meet the Eaton HKD3350X Circuit Breaker — a robust, three‑phase protection solution built for demanding industrial and commercial power environments. With a 350A rating across three poles and a 600V operating capability, this breaker is designed to keep critical circuits, motors, and equipment safe from overloads and faults in everyday operation and during maintenance windows.

Why the HKD3350X stands out

• Three‑pole design for balanced protection — ensures all three phases trip together, preserving system integrity in 3‑phase networks.
• 350A nominal current rating — suitable for heavy‑duty feeders, motor circuits, and main distribution pathways without over‑sizing your protection strategy.
• 600V maximum system voltage — compatible with a wide range of industrial distribution panels and switchgear common in modern facilities.
• Reliability for retrofit and replacement — specifically selected for maintenance, retrofit, and replacement projects where exact specifications matter.

Ideal use cases

This Eaton breaker excels in scenarios where you need dependable protection without changing your panel architecture. Use it for:

• Upgrading aging 3‑phase panels to meet current load and protection requirements.
• Replacing a failed circuit breaker in a 600V, three‑phase distribution network.
• Retrofits in manufacturing lines, processing plants, or large equipment rooms where 350A feeders are common.
• Maintenance outages that require a like‑for‑like replacement to minimize downtime and ensure compatibility.

Compatibility and installation notes

To ensure a smooth fit and reliable performance, verify the exact part reference and ratings before ordering. The HKD3350X part number is your best reference for compatibility, so cross‑check it against your panel label and existing equipment. For retrofit projects, confirm that your enclosure, bus connection type, and 600V circuit layout align with the HKD3350X specifications to prevent installation delays.

Specifications at a glance

• Amperage: 350A
• Poles: 3‑Pole
• Voltage: 600V
• Model: HKD3350X

Designed for professionals who demand precise matching of protection equipment to their 3‑phase systems, the Eaton HKD3350X delivers dependable, straightforward protection that supports smooth operation, easier maintenance, and confident replacements when needed.