Eaton HKD3350 - 350 A, 600 V, 3-Pole Circuit Breaker | AmpState

The Eaton HKD3350 is a 350 A, 600 V, 3-pole molded case circuit breaker designed to safeguard panelboards and load centers from overcurrent and short-circuit events. Built for dependable protection in residential, commercial, and light industrial settings, this breaker helps you protect critical circuits with precision and reliability.

• Compact molded-case design minimizes panel footprint while preserving space for wiring and future expansion.
• Thermal-magnetic trip unit delivers stable, repeatable protection by reacting to both sustained overloads and instantaneous faults, reducing nuisance trips and safeguarding connected equipment.
• 3-pole configuration ideal for three-phase distribution, enabling coordinated protection across all phases in commercial and light industrial panels.
• 600 V rating supports higher-voltage applications, expanding where this breaker can be safely used within your distribution network.
• 350 A current rating provides robust protection for main feeders and sizable branch circuits without compromising response quality.
• OEM panel compatibility designed to integrate smoothly with matching Eaton OEM loadcenters and panelboards for straightforward installation and reliable performance.
• Rugged molded case construction built to withstand the daily demands of service panels and fault events, ensuring long-term durability.

Ideal use scenarios

• New panel installations in offices, retail spaces, or light industrial facilities where reliable three-phase protection is essential.
• Panelboard upgrades or expansions that require higher ampacity and consistent protection curves.
• Replacement for aging protection in Eaton HKD-based installations, preserving system integrity and warranty alignment.

Technical snapshot

• Manufacturer: Eaton
• Part number: HKD3350
• Type: Thermal-magnetic molded case circuit breaker
• Poles: 3
• Amperage rating: 350 A
• Voltage rating: 600 V
• Application: Branch circuit overcurrent and short-circuit protection

Choose the Eaton HKD3350 when you need a space-saving, highly reliable protection solution for substantial three-phase circuits. Its combination of compact design, precise thermal-magnetic protection, and seamless compatibility with Eaton panelboards makes it a practical, long-term investment for ensuring electrical safety and system continuity.