Square D | FHP16100 | Circuit Breaker | 100A | 1-Pole | 277V

Meet the Square D FHP16100 Circuit Breaker—a precise, purpose-built protection device designed for reliable performance in 277-volt distributions. This 100A, 1-Pole breaker is ideal for maintenance, retrofit, and replacement projects where exact specifications matter. Rely on the part number FHP16100 as your primary reference to ensure compatibility with your Square D panel.

Key specifications

• Amperage: 100 A
• Poles: 1-Pole
• Voltage: 277 V
• Reference part: FHP16100

Overview & compatibility

This Square D FHP16100 circuit breaker is crafted for scenarios requiring exact matchups in panel protection. Before you order, verify that your panel supports a 1-Pole, 100A device at 277V and that the physical form factor fits the enclosure. The part number FHP16100 is your best reference to ensure proper compatibility with your series and model.

Ideal use cases

• Retrofits and replacements in commercial or industrial panels that distribute 277V
• Protection for high-demand circuits such as lighting and general power in 277V systems
• Maintenance projects where maintaining the exact 100A, 1-Pole, 277V specs is essential for safety and reliability

Why this matters for your system

Choosing the correct 100A, 1-Pole, 277V breaker minimizes nuisance trips and ensures coordinated protection across feeders and branch circuits. In environments using 277V distribution—common in many commercial facilities—having the right Square D part helps maintain electrical integrity, reduces downtime, and supports safer, more predictable operation of connected loads.

Installation & safety tips

Follow standard electrical safety practices and local codes during installation. Ensure the main power is off, confirm the panel labeling matches the FHP16100 specifications (1-Pole, 100A, 277V), and tighten connections to the manufacturer-recommended torque. If you’re uncertain about compatibility or installation, consult a licensed electrician to verify fit and safe operation.

Notes

Confirm fit and ratings before ordering. The part number FHP16100 is the best reference for compatibility with Square D panels and 277V distribution. Availability may vary by region and stock.