Square D FHB16020A 16020A 1-Pole 277 V Circuit Breaker

Protect your 277-volt circuits with a trusted name in panel protection—the Square D FHB16020A 1-Pole 277 V Circuit Breaker. This single-pole breaker, identified by Part Number FHB16020A, is designed to interrupt and halt fault currents to keep wiring and devices safe in commercial or industrial environments.

Key specifications

• Part number: FHB16020A
• Pole configuration: 1-pole
• Voltage rating: 277 V
• Current rating: 16020 A

Why this breaker matters

In 277-volt distribution, single-pole protection is essential for safeguarding lighting circuits, power distribution for equipment, and other 277V loads. The Square D FHB16020A provides reliable interruption at the precise rating specified, helping prevent electrical faults from propagating and reducing downtime in busy commercial spaces.

Ideal uses

• Replacing a worn or tripped 277 V circuit breaker in commercial panels
• Protecting single-phase circuits in office buildings, retail spaces, or warehouses that operate on 277 V
• Upgrading panel protection with a proven Square D component for compatibility and performance

How it compares to alternatives

Compared to generic breakers, this Square D part is designed to fit Square D panels, helping ensure proper seating, electrical contact, and consistent trip characteristics. Using the exact part number FHB16020A reduces compatibility risk and simplifies future servicing.

Practical tips

• Verify your panel accepts 1-pole, 277 V breakers and matches the Part Number FHB16020A before replacement.
• Power down the main supply and discharge any stored energy before replacing the breaker.
• Keep a spare FHB16020A for quick panel maintenance in commercial environments.

For professionals seeking dependable protection on 277-volt circuits, the Square D FHB16020A 1-Pole 277 V Circuit Breaker delivers consistent performance, straightforward installation, and the peace of mind that comes from using a trusted brand in critical electrical infrastructure.