Eaton GHB3035S1 35A 3-Pole 277 V Circuit Breaker

When you need reliable protection for 277V three-phase circuits, the Eaton GHB3035S1 35A 3-Pole Circuit Breaker delivers dependable, fleet-ready performance for commercial and industrial panels. With a 35-amp rating across three poles, it ensures all conductors trip together on overload or fault, quickly isolating the circuit to prevent equipment damage and reduce downtime.

Key benefits

• Three-pole design ensures simultaneous disconnection of all phases in a 277V three-phase system, enhancing safety and protecting downstream equipment.
• 35 A current rating provides precise protection for feeders and motors without nuisance tripping in normal operation.
• 277 V voltage rating tailored for commercial and industrial distribution networks that run on higher-voltage three-phase power.
• Part Number GHB3035S1 for straightforward replacement and compatibility in Eaton environments.
• Panel-friendly reliability designed to perform consistently in demanding panelboard and switchgear applications.

Ideal use cases

Designed for commercial spaces and light industrial settings, this breaker is well-suited for protecting feeders and motor circuits in 277V three-phase installations. Use it in data centers, offices, retail facilities, or HVAC systems where reliable 3-pole protection is essential to keep equipment safe and operations uninterrupted.

Why this matters in real-world setups

In a three-phase system, faults can involve multiple conductors. A 3-pole breaker like the GHB3035S1 trips all poles together, reducing the risk of half-open circuits and limiting potential arc flash exposure. This means faster fault clearance, minimized collateral damage, and easier downstream maintenance.

Installation & usage guidance

• Replace like-for-like in compatible Eaton panels to maintain proper fit and trip coordination.
• Ensure the panel is de-energized and follow local electrical codes during replacement or installation.
• Verify that the circuit design requires a 3-pole, 277V protection scheme and that the 35A rating matches the protected load.

Specifications at a glance

• Current rating: 35 A
• Poles: 3
• Voltage rating: 277 V
• Part Number: GHB3035S1