Eaton | GHC1090 | Circuit Breaker | 90A | 1-Pole | 277V

Eaton's GHC1090 circuit breaker delivers reliable overcurrent protection for 90-amp, single-pole circuits at 277V. Designed for maintenance, retrofit, and replacement projects, this unit integrates seamlessly with compatible Eaton panels where the GHC1090 family is specified. Before ordering, verify fit and ratings—the part number remains the clearest reference for compatibility.

Key specifications

• Amperage: 90A
• Poles: 1-Pole
• Voltage: 277V
• Part number: GHC1090
• Product type: Circuit Breaker

Why this Eaton GHC1090 matters for your panel

When your panel configuration relies on a single-pole, 90-amp protection at 277V, the GHC1090 provides a precise, manufacturer-backed solution. Its 90A rating supports higher-load circuits common in commercial or industrial settings, while the 277V rating aligns with lighting and equipment circuits typical in commercial buildings. This breaker is purpose-built for maintenance, retrofit, and replacement scenarios, ensuring continuity of protection without the guesswork of generic substitutes.

Ideal use cases

• Replacing a failed or outdated breaker in an Eaton panel that requires a 90A, 1-pole, 277V device.
• Retrofit projects where existing wiring and loads are designed for 277V circuits needing robust, single-pole protection.
• Maintenance activities that require a direct, compatible part reference to minimize downtime and ensure electrical safety.

Compatibility and ordering tips

To ensure correct fit, rely on the part number: GHC1090. This is the most reliable reference for compatibility with Eaton panels and the GHC series. Always confirm fit and ratings before ordering, and consult your panel’s documentation to verify that a 90A, 1-pole, 277V breaker is appropriate for the circuit you’re protecting.

Installation and safety considerations

• Power down the equipment and follow local electrical codes during replacement or retrofit.
• Verify the panel rating supports 90A single-pole, 277V protection before installation.
• Handle the breaker by the body, not the terminals, to avoid damage to internal components.
• Keep a spare GHC1090 on hand for predictable maintenance cycles and faster replacements.