Eaton HFD3110L - 110 A, 600 V, 3-Pole Circuit Breaker | AmpState

The Eaton HFD3110L (110 A, 600 V, 3-Pole) molded case circuit breaker delivers dependable branch-circuit overcurrent and short-circuit protection inside panelboards and load centers. Built for residential, commercial, and light-industrial applications, this compact unit combines space-saving design with a thermal-magnetic trip mechanism that delivers stable, repeatable protection across a range of operating conditions.

Key features that matter in the real world

• Compact molded-case design minimizes footprint and maximizes available panel space, making it easier to fit into crowded electrical enclosures without compromising safety.
• Thermal-magnetic trip unit provides precise, predictable protection against both overloads and short circuits, with trip characteristics that hold steady under temperature variations and aging.
• Three-pole configuration delivers true three-phase protection, ideal for three-phase panelboards and equipment in commercial and light-industrial settings.
• OEM panel compatibility designed to drop into matching Eaton OEM load centers and panelboards, ensuring seamless integration and reliable protection performance.
• 110 A at 600 V rating makes it suitable for mid-range branch circuits and feeders, balancing safety margins with practical current handling in everyday installations.

Why this matters for your projects

• Reliability you can count on: The thermal-magnetic trip mechanism delivers repeatable protection, reducing nuisance trips and enabling predictable maintenance schedules.
• Space-efficient protection: In tight panel layouts, the HFD3110L frees up room for wiring and future expansion while maintaining robust safety margins.
• Versatile application: Perfect for residential service upgrades, commercial distribution systems, and light-industrial equipment feeds that require dependable three-phase protection.
• Simplified sourcing: With OEM compatibility, you can confidently match Eaton components within existing panel ecosystems for consistent performance.

Applications and use cases

• New installations in three-phase panelboards and load centers where 110 A protection is appropriate for feeders and main circuits.
• Upgrading or refurbishing distribution panels in office buildings, retail spaces, or light manufacturing facilities that require reliable short-circuit protection.
• Retrofit projects where matching Eaton components ensure uniform protection characteristics and straightforward maintenance.
• Areas with space constraints where a compact molded-case breaker helps maximize panel capacity without compromising safety.

Technical snapshot

• Manufacturer: Eaton
• Part Number: HFD3110L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 110 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection