Square D | FHF16100 | Circuit Breaker | 100A | 1-Pole | 277V

Engineered by Square D, the FHF16100 circuit breaker delivers precise, reliable overcurrent protection for 277V systems. This authentic 100A, 1-pole unit is built to fit Square D panels and distribution setups where exact compatibility matters, making it ideal for maintenance, retrofit, and replacement projects.

• Amperage: 100 A
• Poles: 1-Pole
• Voltage: 277 V
• Part number: FHF16100

Why choose the FHF16100 for your electrical system:

• Authentic compatibility: As a genuine Square D part, it ensures a precise fit, matching mounting, terminal connections, and labeling to minimize installation surprises.
• Targeted for 277V circuits: Designed specifically for 277V distribution, making it a safer, more reliable choice for commercial and industrial applications where higher voltage is required.
• Maintenance, retrofit, and replacement: The FHF16100 is ideal when upgrading aging panels, retrofitting to new equipment, or replacing a damaged breaker with a like-for-like part.
• Clear compatibility guidance: The part number is the best reference for ensuring you’re selecting the exact component your system needs. Always confirm fit and ratings before ordering.

Practical use cases to consider:

• Maintaining uninterrupted service in commercial facilities with 277V branch circuits
• Replacing a failed 1-pole breaker in an existing Square D panel without altering other protective devices
• Upgrading a legacy electrical setup where a precise, rated 100A device is required for safety and compliance

Tips for a smooth installation and long-term reliability:

• Verify your panel model and labeling to ensure the FHF16100 is a direct match for your enclosure.
• Before installation, shut off main power and follow standard electrical safety procedures. Use the correct torque specifications as defined by your panel manufacturer.
• Keep the original packaging until after installation to preserve warranty considerations and ensure traceability of the authentic Square D part.

Choosing the right breaker is about more than amperage and voltage—it’s about dependable protection that aligns with your panel’s design and your system’s demands. With the Square D FHF16100, you’re selecting a precise, authentic solution built to deliver consistent performance in 277V applications, backed by the reliability you expect from a leading electrical brand.