Eaton HFD3110 - 110 A, 600 V, 3-Pole Circuit Breaker | AmpState

Eaton HFD3110 is a 3-pole molded case circuit breaker engineered for dependable branch circuit protection at 110 A and up to 600 V. Built to integrate with panelboards and loadcenters, it delivers reliable overcurrent and short-circuit protection for a range of applications, from residential to light commercial and industrial installations.

• Compact molded case design maximizes panel space, making it easier to fit additional circuits without crowding the enclosure.
• Thermal-magnetic trip unit provides stable, repeatable protection by combining temperature sensing with magnetic trip action to respond quickly to faults.
• 3-pole configuration ensures simultaneous disconnection of all conductors in three-phase systems for enhanced safety and equipment protection.
• OEM-compatible designed to work with matching Eaton and compatible OEM loadcenters and panelboards for straightforward replacement and reliable performance.
• Versatile for multiple settings ideal for residential panel upgrades, small commercial distributions, and light industrial feeder protection where space and reliability matter.

Key specifications

• Amperage Rating: 110 A
• Voltage Rating: 600 V
• Poles: 3
• Type: Thermal-magnetic molded case circuit breaker
• Manufacturer: Eaton
• Part Number: HFD3110
• Application: Branch circuit overcurrent and short-circuit protection

Real-world use cases

• Upgrading or retrofitting panelboards in light commercial spaces that require robust three-pole protection for 3-phase equipment.
• Installing in new residential or mixed-use panels where efficient space use and reliable trip performance are essential.
• Providing dedicated protection for feeders to small machines or HVAC gear in workshops and light industrial rooms.
• Replacing aging or nonuniform breakers in OEM panels with a trusted, compatible Eaton solution to maintain system integrity.

With the Eaton HFD3110, you’re choosing a tested, purpose-built solution that aligns with standard panel architectures while offering a compact footprint and predictable protection. If you’re planning a panel upgrade or a new installation that needs solid 3-pole protection at 110 A and 600 V, this breaker delivers the reliable performance you expect from Eaton—and it fits seamlessly into compatible panelboards and loadcenters.