Eaton FD1050L (277 V) - 50 A, 277 V, 1-Pole Circuit Breaker | AmpState

The Eaton FD1050L (277V) 50A 1-pole molded case circuit breaker is engineered to deliver precise, reliable protection for single-circuit loads in commercial and light industrial panel systems. Designed to fit panelboards and load centers that require a 277-volt single-pole solution, this breaker provides fast isolation on overloads and short circuits, helping keep your electrical system safe and up to code.

Why this breaker stands out

• Compact molded case design maximizes usable panel space, making it easier to organize circuits in tight electrical enclosures.
• Thermal-magnetic trip unit offers stable, repeatable protection by responding to both prolonged overloads (thermal) and instantaneous short circuits (magnetic) without nuisance trips.
• 1-pole, 50A at 277V ideal for protecting a single branch circuit on 277V distribution, such as lighting and certain HVAC or equipment circuits in commercial settings.
• OEM compatibility is designed to work with matching OEM load centers and panelboards, ensuring a straightforward swap or upgrade in compatible systems.
• Versatile across environments suitable for residential, commercial, and light industrial applications where 277V circuits are common.

Technical specifications at a glance

• Manufacturer: Eaton
• Model: FD1050L
• Amperage rating: 50 A
• Voltage rating: 277 V
• Number of poles: 1
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases and practical scenarios

Use the FD1050L in commercial buildings with 277V lighting grids, small offices, retail spaces, schools, or healthcare facilities where reliable single-circuit protection is essential. It’s a solid replacement or upgrade option for aging panels in retrofit projects, where space efficiency and predictable trip performance matter. For new installations, pair this breaker with compatible Eaton OEM panelboards to maintain consistent protection characteristics across the system.

Installation and maintenance tips

• Verify panel compatibility with Eaton OEM load centers to ensure a secure fit and consistent trip characteristics.
• Compressively inspect terminations during installation to prevent loose connections, which can cause overheating and unwanted tripping.
• Schedule periodic checks of breaker operation in accordance with your facility’s maintenance plan to confirm continued reliability in 277V circuits.

Choose the Eaton FD1050L for dependable, site-ready protection that aligns with 277V commercial electrical layouts. It’s a purpose-built solution for preserving circuit integrity, protecting equipment, and keeping critical spaces running smoothly.