Square D FH16030C - 30 A, 277 V, 1-Pole Plug-In Circuit Breaker | AmpState

Square D FH16030C is a 30A, 277V, 1-pole plug-in molded case circuit breaker designed to deliver dependable branch circuit protection for panelboards and load centers. Built for quick installation and reliable performance, this breaker is a precise choice for commercial, residential, and light industrial electrical systems.

Why this breaker stands out

• Fast plug-in connection enables rapid installation and easy replacement, reducing downtime on service calls or panel upgrades.
• Thermal-magnetic trip unit delivers stable, repeatable protection by addressing both overloads and short circuits, helping to guard wiring and devices from damage.
• OEM-compatible design ensures seamless integration with matching Square D load centers and panelboards, preserving electrical listings and system integrity.
• Versatile applicability suitable for residential, commercial, and light industrial installations where 277V circuits are common.

Technical snapshot

• Manufacturer: Square D
• Part Number: FH16030C
• Type: Thermal-magnetic molded case circuit breaker
• Amperage: 30A
• Voltage: 277V
• Number of Poles: 1
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

Upgrade or retrofit commercial panels that service 277V lighting and outlets, or specify a reliable replacement in new installations where quick plug-in availability speeds up project timelines. This breaker excels in environments such as offices, retail spaces, warehouses, and light manufacturing facilities where consistent protection and fast serviceability matter most.

How it solves real-world problems

By pairing a robust thermal-magnetic trip with a plug-in form factor, the FH16030C minimizes downtime during maintenance and upgrades while delivering dependable protection against both overloads and short circuits. Its OEM compatibility reduces the risk of compatibility issues with existing panelboards and load centers, helping you avoid field-fit problems and listing concerns. In busy facilities, fewer trips and faster replacements translate to steadier operation and smoother preventative maintenance schedules.

Practical tips for installation and care

Before installation, verify that the panelboard is rated for 277V and that the slot is compatible with a 1-pole plug-in breaker. Handle the unit with care to avoid damage to the molded housing, and follow standard electrical safety practices during replacement or servicing. If a panel is already drawing near its protection limits, consider coordinating with additional breakers to balance loads and maintain system efficiency.

Choose the Square D FH16030C for a straightforward, reliable solution that aligns with Square D load centers, offers rapid installation, and delivers targeted protection where it counts—on branch circuits that demand steady performance at 277V.