Square D FH16015B - 15 A, 277 V, 1-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D FH16015B — a 15A, 277V, 1-pole plug-in molded case circuit breaker designed to protect branch circuits with precision in panelboards and load centers. Its fast plug-in connection makes installation and replacements effortless, reducing downtime on critical electrical systems.

• Fast plug-in connection for quick installation and straightforward replacements in compatible Square D panels.
• Thermal-magnetic trip unit delivers stable, repeatable protection against both overloads and short circuits, minimizing nuisance trips and ensuring reliable circuit discipline.
• 277V rating tailored for commercial lighting, feeders, and devices commonly found in panelboards and load centers.
• 1-pole design safeguards a single hot conductor, ideal for individual circuits in 277V systems.
• Molded case construction offers durable insulation and robust arc-energy handling for real-world installations.
• OEM-compatible works with matching Square D OEM load centers and panelboards to preserve proper trip coordination and UL listing.

This breaker is a versatile choice for residential, commercial, and light industrial electrical installations where a reliable 15A, 277V single-pole protection is needed—think retrofit panel upgrades, maintenance replacements, or adding a new 277V circuit in existing Square D systems.

• Use case: Replacement swap in a failed or worn-out breaker within a Square D panelboard or load center to restore safe service quickly.
• Use case: Expansion add a 15A circuit to a 277V panel serving lighting, outlets, or equipment in a commercial setting.
• Use case: Maintenance readiness keep a spare on hand for fast, downtime-minimizing servicing.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: FH16015B
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 15A
• Voltage Rating: 277V
• Number of Poles: 1
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Choose the FH16015B for dependable protection that aligns with your existing Square D panels, minimizes downtime, and keeps your 277V circuits safely coordinated across residential, commercial, and light-industrial environments.