Square D FH16015 A - 15 A, 277 V, 1-Pole Plug-In Circuit Breaker | AmpState

Engineered by Square D, the FH16015A is a 15A, 277V, 1-pole plug-in molded case circuit breaker designed to shield your electrical system from overcurrent and short-circuit events. Built for dependable protection, it integrates seamlessly into panelboards and load centers to keep circuits safe while simplifying maintenance.

• Fast plug-in connection for quick installation and effortless replacement—minimizing downtime during panel servicing.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance across a range of loads and conditions.
• 1-pole, 15A, 277V design precisely guards a single branch circuit against overloads and faults common in lighting and receptacle runs in commercial or residential settings.
• OEM-compatible—engineered to work with matching Square D load centers and panelboards for a reliable, integrated protection solution.
• Versatile applicability suitable for residential, commercial, and light industrial environments where dependable single-circuit protection is essential.

With its plug-in molded-case construction, this breaker simplifies upgrades, replacements, and service work in panelboards where space is at a premium. The 277V rating targets commercial applications such as lighting circuits and equipment feeds, offering protection tailored to higher-voltage branch circuits while remaining easy to install in compatible cabinets.

Ideal for technicians and facilities managers who value fast serviceability without sacrificing reliability, the FH16015A helps keep electrical systems compliant and protected across a variety of spaces—from residential panels to light commercial installations. When you choose this Square D breaker, you’re selecting a solution designed for precise fault protection, straightforward replacement, and enduring performance in everyday electrical layouts.

Use cases at a glance

• Replacing a failed 1-pole breaker in an existing panelboard or load center
• Protecting a dedicated branch circuit powering lighting or receptacle outlets in small commercial spaces
• Upgrading panels that require a plug-in 15A, 277V, 1-pole molded case breaker for reliable operation

Tip: When installing, ensure the panelboard is designed to accept plug-in molded case breakers of this family for a secure seat and optimal contact pressure, which supports consistent trip performance over time.