Square D FH16050 A - 50 A, 277 V, 1-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D FH16050A – a 50A, 277V, 1-pole plug-in molded case circuit breaker designed to keep your electrical systems protected with precision and speed. Built for dependable branch circuit overcurrent and short-circuit protection, it’s the reliable choice for panelboards and load centers in homes, offices, and light industrial settings.

• Fast plug-in connection for streamlined installation and quick replacement, reducing downtime in service panels.
• Thermal-magnetic trip unit delivers stable, repeatable protection across varying temperatures and load conditions, helping to prevent nuisance trips while safeguarding circuits.
• OEM compatibility engineered to fit with matching Square D OEM load centers and panelboards, ensuring a seamless, code-compliant upgrade or replacement.
• Versatile application ideal for residential, commercial, and light industrial circuits requiring reliable 50A protection at 277V.

Why this breaker stands out

The FH16050A combines trusted Square D engineering with a plug-in design that makes installation and maintenance straightforward in busy electrical environments. Its 1-pole configuration is perfect for protecting a single branch circuit, such as a lighting run or receptacle circuit, in 277V systems commonly used in commercial spaces. The thermal-magnetic trip mechanism offers precise trip curves that respond to actual fault conditions, providing protection where it matters most without unnecessary interruptions.

Who should consider the FH16050A

Ideal for technicians upgrading legacy panels or stocking service vans for residential, commercial, or light industrial projects. If you’re replacing a failed breaker in a compatible Square D panelboard, or you’re expanding a 277V circuit with a dependable 50A protection point, this plug-in breaker is designed to fit and perform as intended.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: FH16050A
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 50A
• Voltage Rating: 277V
• Number of Poles: 1
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Whether you’re conducting a proactive panel refresh, replacing a failed unit, or wiring a new 277V circuit in a commercial space, the FH16050A provides dependable protection with a straightforward, plug-in experience. Designed to work in harmony with matching OEM load centers and panelboards, it helps you keep electrical systems safe, compliant, and up to code with confidence.