Eaton HMDL3800 - 800 A, 600 V, 3-Pole Circuit Breaker | AmpState

The Eaton HMDL3800 is a purpose-built 800 A, 600 V, 3-pole molded case circuit breaker engineered for dependable branch circuit protection in panelboards and loadcenters. Its compact molded case design helps optimize panel space while delivering robust protection for demanding distributions in commercial, residential, and light industrial settings.

Why the HMDL3800 stands out

• Thermal-magnetic trip unit combines a thermal element for overload protection with an instantaneous magnetic trip for short-circuit events, delivering stable, repeatable protection across varying loads and ambient temperatures.
• 3-pole configuration provides balanced, coordinated protection on 3-phase systems, helping prevent phase-to-phase faults and ensuring reliable operation in multi-phase panelboards.
• 800 A, 600 V rating makes it suitable for larger feeders and main circuit protection within OEM panelboards and loadcenters, enabling scalable distributions without sacrificing reliability.
• OEM compatibility is designed to pair directly with matching Eaton panelboards and loadcenters, ensuring clean bus connections, streamlined installation, and consistent performance.
• Durable, space-efficient design is optimized for panel installations where real estate matters, delivering long service life in demanding environments typical of commercial and light industrial applications.

Ideal use cases

• Protection for large feeders and main circuits in commercial panelboards and loadcenters.
• Residential and light industrial distribution where high ampacity and reliable short-circuit protection are required.
• Retrofits or upgrades in Eaton-compatible systems where maintaining panel integrity and coordinated protection is essential.

Practical considerations for installation and operation

• Verify that the panelboard or loadcenter is compatible with the HMDL3800 model and that the installation adheres to OEM guidelines for bus connections and torque specifications.
• Prepare conductors and terminations to match an 800 A rating, ensuring proper sizing and secure lugs for long-term reliability.
• Use as part of a coordinated protection scheme within multi-panel distributions to minimize nuisance trips and optimize fault response.

Technical snapshot

• Manufacturer: Eaton
• Part number: HMDL3800
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 800 A
• Voltage rating: 600 V
• Number of poles: 3
• Applications: Branch circuit overcurrent and short-circuit protection

For professionals upgrading or specifying panel installations, the Eaton HMDL3800 delivers reliable, space-conscious protection that integrally supports Eaton’s ecosystem of panelboards and loadcenters. Its precise trip behavior and robust construction help you protect valuable equipment and keep power distribution running smoothly.