Eaton GD3090 - 90 A, 480 V, 3-Pole Circuit Breaker | AmpState

Introducing the Eaton GD3090 — a 90A, 480V, 3-pole molded case circuit breaker designed to safeguard your electrical distribution with precision and reliability. Built for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters, this unit is a smart choice for residential, commercial, and light industrial settings that demand consistent performance and straightforward maintenance.

Why this GD3090 stands out

• Compact molded-case design maximizes panel space and simplifies installation in tight electrical rooms without compromising protection.
• Thermal-magnetic trip unit delivers stable, repeatable protection — overload slowing down the trip curve is balanced with a fast response to short circuits, reducing the risk of damage and downtime.
• 3-pole configuration for 3-phase systems tailored to 480V feeders, making it ideal for commercial and light industrial distribution.
• OEM-compatibility designed to drop into matching Eaton load centers and panelboards, ensuring a seamless upgrade or replacement path.
• Clear current capacity and protection 90A rating with 480V operational capacity provides robust protection for medium-load circuits and motor-start scenarios common in everyday facilities.

Ideal use scenarios

Engineered for panelboards and loadcenters, the GD3090 is well-suited for:

• Branch circuits feeding motors, conveyors, and other 3-phase equipment in light industrial environments.
• Commercial electrical distributions requiring reliable 3-phase protection at 480V.
• Residential applications where higher- or three-phase protection is specified, providing a durable, standardized replacement option.
• New installs or legacy panel retrofits where OEM compatibility streamlines sourcing and maintenance.

Practical benefits and outcomes

Choosing the GD3090 means predictable protection characteristics across varying temperatures and load conditions, reducing nuisance trips and aiding in proactive electrical maintenance. Its compact footprint helps you maximize panel density, while the thermal-magnetic mechanism offers fast, dependable fault interruption to protect wiring, devices, and downstream equipment.

Technical snapshot

• Manufacturer: Eaton
• Part Number: GD3090
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 90 A
• Voltage Rating: 480 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection
• Compatibility: Compatible with matching OEM load centers and panelboards
• Applications: Residential, commercial, and light industrial