Industrial HFB1070 70A 1-Pole 277 V Circuit Breaker

Meet the Industrial HFB1070 70A 1-Pole 277 V Circuit Breaker — a purpose-built protection solution for demanding industrial electrical installations. With a 70 amp current rating and a single-pole design for 277-volt applications, this unit is engineered to safeguard critical circuits in commercial and industrial environments.

Key specifications at a glance

• Current rating: 70 A
• Poles: 1
• Voltage rating: 277 V
• Part number: HFB1070

Why this breaker stands out

The Industrial HFB1070 is purpose-built for 277 V systems found in many facilities, from large lighting networks to control circuits and equipment feeders. Its single-pole configuration simplifies wiring while delivering dependable protection for the hot leg in 277 V installations. The HFB1070 model provides a clear, traceable part number for easy ordering, maintenance, and replacement—minimizing downtime in busy industrial environments.

Who benefits most

Ideal for electrical teams and facility managers who need reliable, straightforward protection for 277 V branch circuits. It’s particularly well-suited for panel upgrades or new installations where a 70 A, 1-Pole, 277 V solution is required to guard against overloads and faults without complicating the panel layout.

Practical use cases

• Protecting 277 V lighting circuits in warehouses, factories, and large commercial spaces.
• Safeguarding single-leg feeders to motors or equipment powered from 277 V systems.
• Replacing worn or obsolete breakers in industrial distribution panels with a compatible, clearly identified part (HFB1070).

How it fits into your safety strategy

By providing clear overcurrent protection for a dedicated 277 V line, this breaker helps prevent electrical faults from propagating through downstream equipment, reducing risk, downtime, and repair costs. Its rugged design is built to perform in environments where reliability matters most, delivering predictable operation when it’s needed most.

Installation and maintenance tips

• Verify that the circuit load aligns with the 70 A rating to maintain safe, compliant operation.
• Ensure the panel and wiring are rated for 277 V and that the single-pole configuration matches your distribution layout.
• Keep a spare HFB1070 on hand for rapid replacements to minimize equipment downtime.