Eaton GHQRD1030 - 30 A, 277 V, 1-Pole Circuit Breaker | AmpState

Introducing the Eaton GHQRD1030 — a 30A, 277V, 1-pole molded case circuit breaker engineered to protect branch circuits in panelboards and loadcenters. Its compact molded-case design, paired with a thermal-magnetic trip unit, delivers dependable overcurrent and short-circuit protection while maximizing space in dense electrical panels.

Key Features

• Compact molded-case design minimizes footprint so you can fit more circuits in modern, space-constrained panels without sacrificing protection.
• Thermal-magnetic trip unit ensures stable, repeatable protection across a range of loads and temperatures, reducing nuisance trips and safeguarding wiring.
• 30A, 277V, 1-pole configuration is ideal for single-branch circuits in commercial and light industrial environments that run on 277V lighting and equipment circuits.
• OEM-compatible compatibility works with matching Eaton panelboards and loadcenters to ensure proper fit, bus compatibility, and coordinated protection.
• Versatile applications suitable for residential, commercial, and light industrial settings where reliable branch-circuit protection is essential.

Why this breaker matters

The GHQRD1030 targets real-world needs: protect wiring from overcurrent events, quickly interrupt fault conditions, and maintain panel organization in spaces where every inch counts. By pairing this breaker with the right Eaton loadcenter, you get predictable trip behavior, improved safety, and reduced maintenance due to fewer unexpected trips on 277V circuits such as commercial lighting, fans, and control circuits.

Technical Details

• Manufacturer: Eaton
• Part Number: GHQRD1030
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30 A
• Voltage Rating: 277 V
• Number of Poles: 1
• Application: Branch circuit overcurrent and short-circuit protection

Applications & Use Cases

Ideal for commercial and light industrial environments that utilize 277V circuits. Specific scenarios include:

• Lighting and power distribution in office buildings, retail spaces, and warehouses
• HVAC and motor control circuits that run on 277V systems
• Panelboard configurations where space efficiency and reliable protection are critical

Installation & Compatibility

To ensure optimal performance, install the GHQRD1030 in compatible Eaton OEM loadcenters and panelboards. This alignment guarantees correct fit, bus mounting, and coordinated protection across the entire panel lineup. Always verify the panel’s compatibility and adhere to local codes and safety practices during installation.

Practical Insights

• Use in matching Eaton systems to maintain consistent trip characteristics across multi-breaker panels.
• Consider pairing with other Eaton 277V devices in the same panel to simplify maintenance and improve circuit coordination.
• Store spare breakers in their original packaging and label circuits clearly to speed future service or replacement.