Square D FA34050 - 50 A, 3-Pole Plug-In Circuit Breaker | AmpState

Square D FA34050 is a 50A, 3-pole plug-in molded case circuit breaker engineered to protect branch circuits in panelboards and loadcenters from overcurrent and short circuits. Its thermal-magnetic trip unit delivers stable, repeatable protection, helping to keep electrical systems reliable and reducing the risk of nuisance trips in daily operation.

Designed for fast, straightforward service, the FA34050 features a plug-in connection that simplifies installation and replacement. This enables quicker panel maintenance and minimizes downtime during upgrades or expansions.

• Plug-in convenience: quick, tool-efficient installation and hassle-free replacement.
• Thermal-magnetic protection: precise trip responses to overload and short-circuit conditions for dependable circuit safety.
• Three-pole design: ideal for 3-phase systems common in commercial and light industrial settings.
• OEM compatibility: designed to fit matching Square D OEM load centers and panelboards for reliable electrical coordination.
• Versatile applications: suitable for residential, commercial, and light industrial electrical layouts.

Technical snapshot:

• Manufacturer: Square D
• Part Number: FA34050
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 50A
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases include upgrading panelboards to accommodate new 3-phase loads in residential-adjacent projects, equipping commercial offices with reliable three-phase protection, and enabling maintenance-friendly expansions in light industrial environments. The FA34050 provides a robust, plug-in solution that aligns with Square D panelboards, delivering consistent protection where it matters most.