HFB1045 | Circuit Breaker | 45A | 1-Pole | 277V

HFB1045 | Circuit Breaker | 45A | 1-Pole | 277V is an industrial-grade protection device designed to safeguard 277-volt circuits with precise, dependable performance. Built for maintenance, retrofit, and replacement projects, this single-pole breaker targets exact specifications to keep your electrical system protected without unnecessary downtime.

• Amperage: 45A
• Poles: 1-Pole
• Voltage: 277V
• Best reference for compatibility: part number HFB1045
• Intended use: maintenance, retrofit, and replacement where matching specs are required

Why this matters in real-world setups: the HFB1045 is purpose-built for 277V environments common in commercial and light industrial equipment. A 1-pole design provides targeted protection for simple branch circuits and control feeders, while the 45A rating ensures reliable overcurrent protection without unduly interrupting normal operation. For technicians, this means a drop-in replacement option that aligns with established panel configurations and electrical drawings.

Use cases you’ll encounter with this breaker include:

• Upgrading or replacing worn breakers in 277V distribution panels
• Maintaining steady protection on lighting feeders and basic control circuits
• Retrofits where panel compatibility is defined by the HFB1045 part number

Compatibility and ordering guidance: Always confirm fit and ratings before ordering. The part number HFB1045 is the most reliable reference to ensure this breaker matches your panel or enclosure’s specifications and the circuit it serves.

Installation and safety notes: power down the system and follow standard electrical safety practices when replacing or installing this breaker. Verify that the panel labeling permits a 1-pole, 45A device for 277V circuits and that conductor sizing and protection align with local codes. This breaker is designed to integrate with compatible industrial panels and 277V infrastructure, delivering dependable protection without surprises.

In summary, the HFB1045 is a precise, purpose-built solution for maintaining robust circuit protection in 277V, single-pole applications. Its defined amperage, clear 1-pole format, and explicit compatibility reference (the HFB1045 part number) help technicians select the right device for reliable, long-term performance.