Westinghouse GHB1100 100A 1P 480V Circuit Breaker, Bolt-On | AmpState

The Westinghouse GHB1100 100A 1P 480V Bolt-On Circuit Breaker is built for everyday electrical work, delivering dependable circuit protection for panelboards, load centers, and electrical distribution runs.

Designed with retrofit projects and maintenance planning in mind, the GHB1100 keeps your installations aligned with existing part numbers and service schedules, reducing downtime and simplifying spares inventories.

• Amperage: 100 A
• Poles: 1
• Voltage: 480 V
• Mounting: Bolt-On
• Manufacturer: Westinghouse
• Part Number: GHB1100

Applications include protection in panelboards, load centers, and throughout electrical distribution networks. The bolt-on design supports straightforward installation and quick field replacements, helping you minimize disruption during maintenance or upgrades.

Why choose this model? It pairs a robust 100 A rating with a compact 1-pole configuration suitable for 480 V systems, making it an ideal fit for retrofit work where preserving the exact part number matters. Its bolt-on interface is designed for reliable, durable connections in demanding electrical environments.

Practical use cases and guidance

• Retrofit projects where the part number must remain GHB1100 to match existing protective schemes.
• Maintenance planning for industrial or commercial distributions that operate at 480 V and require quick, dependable circuit protection.
• Repairs in panelboards and distribution panels that need a consistent, serviceable 1-pole, 100 A breaker to maintain safety standards.

Available from AmpState. If you need help confirming compatibility or matching a part number, send a message and our team will assist with fit checks and practical upgrade guidance.