Eaton GHC1100 - 100 A, 277 V, 1-Pole Circuit Breaker | AmpState

Meet the Eaton GHC1100 — a 100 A, 277 V, 1-pole molded case circuit breaker designed for reliable branch circuit protection in panelboards and loadcenters. Built to save panel space without sacrificing protection, it’s a smart choice for real-world electrical layouts in homes, workplaces, and light industrial settings.

The GHC1100 combines a compact molded case design with a thermal-magnetic trip unit that delivers stable, repeatable protection. The thermal element handles overloads smoothly, while the magnetic element reacts quickly during short circuits, helping limit damage and downtime. This means fewer nuisance trips and more consistent performance where it matters most.

Key advantages that matter in the field

• Space-efficient design: compact molded case helps maximize panel capacity and streamline wiring in crowded enclosures.
• Thermal-magnetic protection: provides dependable overcurrent and short-circuit protection with predictable, repeatable trip characteristics.
• OEM compatibility: designed to work with matching Eaton panelboards and loadcenters for a seamless, reliable fit.
• Versatile application: suitable for residential, commercial, and light industrial circuits that run on 277 V lighting and distribution systems.
• Clear electrical rating: 100 A at 277 V, 1-pole, ideal for single-feed branch circuits and dedicated loads in controlled environments.

Ideal use scenarios

• Retrofits and upgrades in residential panelboards where space is at a premium and reliable protection is essential.
• Commercial lighting and power distribution in mid-size offices, retail spaces, and service areas that operate on 277 V systems.
• Light industrial panels where a robust, compact breaker helps manage multiple feeders without crowding the enclosure.
• New installations that require a dependable, easy-to-integrate 1-pole solution with OEM-compatible hardware.

Practical considerations and installation tips

• Always install the GHC1100 in panels that specify compatibility with matching Eaton OEM loadcenters and panelboards.
• Follow Eaton installation guidelines and your panel manufacturer’s instructions to ensure proper mounting, wiring, and sequential tripping behavior.
• Use this breaker for branch-circuit protection where a single hot leg at 277 V needs reliable protection against overloads and faults.

Why choose the Eaton GHC1100

For professionals who value space efficiency without sacrificing protection, the GHC1100 delivers consistent trip performance and straightforward integration in Eaton-compatible panels. Its 1-pole, 100 A, 277 V specification makes it a focused solution for single-feed circuits in commercial and light industrial environments, while its compact form helps you design cleaner, more accessible panels. If you’re upgrading or specifying a dependable, OEM-aligned breaker for 277 V applications, the GHC1100 is engineered to perform and to fit the job.