Industrial HFB1100 100A 1-Pole 277 V Circuit Breaker

Designed for demanding industrial environments, the Industrial HFB1100 100A 1-Pole 277 V Circuit Breaker delivers dependable overcurrent protection for single-phase circuits in commercial and light industrial panels. With the part number clearly identifying its model, this breaker is built to withstand the rigors of everyday operation in 277V distribution networks, helping keep wiring, devices, and operators safe.

• 100 A current rating provides solid protection for feeder and branch circuits in 277V systems, allowing you to safeguard voltage-sensitive equipment without frequent nuisance trips.
• 1-Pole design offers a compact footprint for tight panel spaces while handling single-phase circuits common in many industrial applications.
• 277 V voltage rating makes it an ideal choice for commercial lighting, distribution panels, and control cabinets that operate at higher single-phase voltages typical in warehouses, office complexes, and manufacturing facilities.
• Part Number HFB1100 ensures precise ordering and replacement compatibility, reducing downtime and inventory confusion in busy maintenance environments.
• Industrial-grade construction focused on reliability in demanding settings, helping to minimize unplanned outages and protect valuable electrical infrastructure.

Ideal use scenarios include upgrading aging panelboards in warehouses and production facilities, protecting 277V lighting circuits, or integrating into control panels that serve single-phase equipment. Its 1-Pole configuration is particularly well-suited for localized protection on individual branches within larger industrial distributions, where space is at a premium and dependable interruption of fault currents is essential.

Practical considerations for installation and selection: verify that your panel accepts a 1-Pole 277V breaker and that wiring conductors and terminations are rated for 100A. Plan for orderly replacement by keeping the HFB1100 part on hand in your facility’s spare parts inventory, and always follow your local electrical codes and the original panel documentation for torque specifications and wiring practices. This approach helps you maintain consistent protection across your 277V circuits and keep critical operations running smoothly.

Specifications at a glance:

• Current rating: 100 A
• Poles: 1
• Voltage rating: 277 V
• Part Number: HFB1100