Eaton Cutler-Hammer 3T20FB 20A 1P 480V Circuit Breaker | AmpState

The Eaton Cutler-Hammer 3T20FB 20A 1P 480V Circuit Breaker is a dependable solution for protecting electrical distribution in panelboards and load centers. Built to handle 480V circuits, this single-pole breaker delivers reliable overcurrent protection where it matters most—keeping equipment and personnel safe while supporting uninterrupted operation in industrial and commercial environments.

What makes the 3T20FB unique is its focus on retrofit compatibility and maintenance planning. When projects require a consistent part number—even across generations of panels—this breaker stays in place with confidence, reducing downtime and simplifying stocking decisions for maintenance teams. It’s an ideal choice when you need a proven Eaton solution that matches existing 3T20 family hardware without surprises in fit or performance.

Key benefits and use cases

• Retrofit readiness: maintain continuity in panelboards and distribution networks without re-engineering power protection schemes.
• Clear protection for 480V circuits: supports industrial and commercial installations that run at higher voltage levels.
• Simple stocking and maintenance planning: a familiar part number helps keep spare inventories streamlined.
• Reliability in critical environments: designed to provide consistent performance in demanding distribution systems.

Specifications at a glance

• Manufacturer: Eaton Cutler-Hammer
• Part Number: 3T20FB
• Product Type: Circuit Breaker
• Amperage: 20 A
• Poles: 1 Pole
• Voltage: 480V
• Availability: AmpState

Need help matching a part number or confirming compatibility with your panel? Message us and we’ll help you confirm fit. AmpState is equipped to verify whether the 3T20FB meets your specific installation needs and to ensure you’re getting the right component for your electrical distribution system.

Whether you’re planning retrofit projects, stocking spare breakers for maintenance, or ensuring consistent protection across a 480V distribution setup, the Eaton Cutler-Hammer 3T20FB delivers dependable performance with the confidence that comes from a familiar, industry-standard part. Add this 20A, 1P, 480V circuit breaker to your order from AmpState and keep your electrical system protected and ready for action.