Eaton Cutler-Hammer GHB2040 40A 2P 480V Circuit Breaker, Bolt-On | AmpState

The Eaton Cutler-Hammer GHB2040 is a purpose-built circuit breaker designed to protect your panelboards, load centers, and electrical distribution systems with dependable, bolt-on performance. This 40-amp, two-pole unit operates at 480V and is engineered to support retrofit projects where keeping the exact part number matters for ongoing maintenance and spare-part consistency.

Why the GHB2040 stands out

Engineered for reliability in demanding environments, the bolt-on design provides a secure, robust connection that stands up to routine service and periodic maintenance. With a 40 A rating and 480V capacity, it’s well-suited for protecting 3-phase or single-phase circuits in commercial, industrial, and utility-adjacent applications. The GHB2040 is a trusted choice when you need predictable behavior in established electrical infrastructures while preserving the part number for streamlined planning and stocking.

Key benefits and use cases

• Retrofitting with confidence: Maintain a consistent part number (GHB2040) to simplify replacements, spare parts inventories, and service scheduling.
• Solid protection for 480V systems: Two-pole design safeguards both conductors, ensuring balanced interruption and reliable fault isolation in higher-voltage installations.
• Panel and distribution versatility: Ideal for panelboards, load centers, and various electrical distribution configurations where bolt-on protection is required.
• Maintenance planning made easier: Availability through AmpState helps you source the exact unit you’ve specified, reducing compatibility doubts during a retrofit or upgrade.
• Industrial and commercial readiness: Suitable for retrofit projects in aging facilities or new installations that rely on consistent, stockable part numbers for ongoing service.

Specifications at a glance

• Manufacturer: Eaton Cutler-Hammer
• Part number: GHB2040
• Amperage: 40 A
• Poles: 2
• Voltage: 480V
• Mounting style: Bolt-On
• Product type: Circuit Breaker

Who should consider this breaker

Ideal for facilities engineering teams, electrical contractors, and maintenance professionals managing retrofit projects or long-term service plans where part-number consistency reduces downtime and inventory complexity. If your panels or distribution boards are configured around 2-pole, 480V protection and you require a bolt-on solution with a defined, familiar part number, the GHB2040 is designed to fit that workflow.

Getting it and ensuring fit

This unit is available from AmpState, with support to verify compatibility and confirm fit against your existing infrastructure. If you’re matching a part number for a retrofit or service schedule, you can rely on the GHB2040 to deliver the performance and compatibility you expect from Eaton Cutler-Hammer, while keeping maintenance records streamlined.

Install and operation should be performed by a qualified electrician in accordance with local codes and standards. When in doubt about panel compatibility or exact mounting requirements, reach out for expert assistance to ensure a safe and compliant installation.