Eaton GBH3090 90 Amp 600 Volt 3-Pole Circuit Breaker

The Eaton GBH3090 is a purpose-built 3-pole, bolt-on molded case circuit breaker designed to shield your electrical systems from overcurrent and short-circuit events. Rated at 90 A and 600 V, it provides robust protection for branch circuits in panelboards and load centers, giving you peace of mind in both new installations and upgrades.

Why this breaker stands out

• Secure bolt-on mounting delivers a rigid, vibration‑resistant bus connection, maintaining electrical integrity in environments where equipment experiences movement or vibration.
• Thermal-magnetic trip unit combines precise thermal overload sensing with a fast magnetic trip for short circuits, ensuring stable, repeatable protection across a wide range of conditions.
• OEM-compatible design is engineered to drop into matching load centers and panelboards without the need for adapters or modification, simplifying installation and upgrading processes.
• Versatile, dependable protection suited for residential, commercial, and light industrial applications that demand reliable branch-circuit safety and continuity.

What problems it solves

When electrical faults occur, a bulky or unreliable breaker can lead to nuisance trips or insufficient protection. The GBH3090’s combination of safe, predictable tripping and a solid mechanical connection minimizes downtime, protects wiring and devices, and supports safe, continuous operation in busy panel environments.

Ideal use cases

• Upgrading aging panels in small-to-mid-size commercial spaces where a 3-pole 90 A solution is needed.
• Protecting motor circuits and distribution feeds in light industrial setups where vibration resistance matters.
• Integrating with OEM panelboards and load centers to maintain standardized protection across a facility.

Key specifications

• Manufacturer: Eaton
• Part number: GBH3090
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage rating: 90 A
• Voltage rating: 600 V
• Poles: 3
• Mounting style: Bolt-on
• Applications: Branch circuit overcurrent and short-circuit protection in panelboards and load centers

Whether you’re replacing a failed unit, expanding a panel, or standardizing safety across multiple enclosures, the Eaton GBH3090 offers a precise, dependable solution built to handle the demands of modern electrical systems with confidence.