Eaton HFD1090 - 90 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState

When reliability and precise protection matter, the Eaton HFD1090 delivers. This 90A, 277V, 1-pole bolt-on molded case circuit breaker is designed to guard branch circuits in panelboards and loadcenters with unwavering performance.

• Secure bolt-on mounting: Provides a rigid, vibration-resistant bus connection that stays put, even in environments with movement or heavy equipment.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection against overloads and short circuits, reducing nuisance trips and shielding connected equipment.
• 277V compatibility: Ideal for commercial and industrial lighting and power circuits where 277V systems are standard, enabling protection without adapters or modifications.
• 1-pole, 90A rating: Perfect for protecting a single high-ampacity branch circuit or critical loads within a panelboard or loadcenter.
• OEM loadcenter compatibility: Designed to pair with matching Eaton OEM panelboards and loadcenters for a seamless, code-compliant installation.
• Versatile for multiple settings: Suitable for residential, commercial, and light industrial applications where dependable overcurrent and short-circuit protection is essential.

Why this breaker stands out

The HFD1090 isn’t just a spec sheet item—it’s a dependable solution for electricians needing a rugged, bolt-on unit that won’t loosen under vibration or temperature changes. The bolt-on mounting, robust thermal-magnetic trip, and 277V capability make it a practical choice for service upgrades, panelboard replacements, or new installations in commercial spaces.

Key specifications

• Manufacturer: Eaton
• Part Number: HFD1090
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 90A
• Voltage rating: 277V
• Number of poles: 1
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Whether upgrading an aging panel or stocking a commercial electrical room, the Eaton HFD1090 delivers reliable protection with a straightforward, installer-friendly bolt-on design. Its compatibility with Eaton’s OEM panels ensures a smooth swap-in process and maintains system integrity across your electrical infrastructure.