Eaton HFD3040 40A 3P 600V Circuit Breaker | AmpState

Designed for reliability in panelboards, load centers, and electrical distribution systems, the Eaton HFD3040 is a 40 Amp, 3-pole, 600-volt circuit breaker built to protect essential power circuits. This direct-match unit helps you keep the BOM aligned to the original part number, supporting straightforward replacements and maintenance without surprises.

• Amperage: 40 A
• Poles: 3
• Voltage: 600V
• Part Number: HFD3040
• Manufacturer: Eaton
• Applications: Panelboards, load centers, and electrical distribution systems
• Availability: Available from AmpState

The HFD3040 stands out as a practical, no‑nonsense replacement that preserves BOM integrity and minimizes downtime during maintenance or upgrades. Its three-pole design makes it ideal for three‑phase distribution where balanced protection is essential, while its 600V rating covers a broad range of industrial and commercial installations. By choosing a unit that matches the original Eaton specification, you ensure wiring configurations, trip characteristics (as defined by the original part), and fitment align with your existing equipment.

Use cases and scenarios that benefit from the Eaton HFD3040 include routine panel servicing, stocking spares for critical facilities, and updates to electrical distribution layouts where a precise, compatible 3P 40A breaker is required. It’s particularly well-suited for facilities built around Eaton components, where compatibility and BOM accuracy streamline procurement and service workflows.

Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.

In short, the Eaton HFD3040 is more than a breaker—it’s a strategic part of your maintenance and reliability plan, ensuring consistent protection, easy replacement, and BOM‑level consistency across your panelboards and load centers.