Eaton Cutler-Hammer GHB3040 40A 3P 480V Circuit Breaker, Bolt-On | AmpState

Meet the Eaton Cutler-Hammer GHB3040: a robust 40 A, 3-pole, 480 V bolt-on circuit breaker designed for reliable protection in panelboards, load centers, and broad electrical distribution networks. Built to handle demanding industrial and commercial applications, this unit keeps critical circuits safeguarded with precise, trip-ready performance.

• Amperage: 40 A
• Poles: 3
• Voltage rating: 480 V
• Mounting: Bolt-On for secure, service-friendly installation
• Part number: GHB3040
• Manufacturer: Eaton Cutler-Hammer

Why this specific GHB3040 matters for your project

• Replacement-ready in the field: Designed to drop into panelboards and load centers that support the GHB bolt-on family, enabling straightforward upgrades or replacements without disrupting existing distribution layouts.
• BOM-aligned spare part: Keeping an authentic GHB3040 on hand simplifies maintenance planning by preserving the original bill of materials, reducing compatibility risk during repairs.
• Solid protection for 480 V networks: Three-pole configuration ensures balanced protection across all phases, essential for stable operation of 3-phase equipment and machinery.
• Efficient installation: The bolt-on design provides reliable mechanical seating, helping technicians complete retrofit or replacement work with confidence and speed.

Ideal use cases to match real-world needs

• Industrial panelboards and distribution systems operating at 480 V three-phase power
• Retrofits, refurbishments, or expansions where maintaining original part numbers is critical
• Spare-stock kits for facilities with high uptime requirements (manufacturing floors, data centers, and commercial plants)

Where AmpState fits your sourcing needs

This GHB3040 is available directly from AmpState, backed by our team’s commitment to compatibility and fit confirmation. If you’re unsure whether this exact part matches your panel or BOM, send us a note and we’ll help verify compatibility quickly—keeping your project on track and your electrical distribution protected.