Square D | FA340901037 | Circuit Breaker | 3-Pole | Plug-In

Square D FA340901037 is a 3-Pole Plug-In Circuit Breaker engineered for dependable three-phase protection in compatible Square D panels. Designed for maintenance, retrofit, and replacement, this unit enables fast, clean swaps that keep your electrical system running with minimal downtime.

The plug-in design is a standout feature for field service and ongoing maintenance. It snaps into the panel without invasive wiring changes, so technicians can restore protection quickly while your site stays productive. With a true three-pole configuration, it provides coordinated protection across all three conductors in a 3‑phase system, helping guard motors, compressors, and other equipment from overloads and transient faults.

• Three-pole configuration tailored for three-phase circuits in compatible Square D panels
• Plug-in form factor simplifies installation and replacement, reducing downtime during maintenance or retrofit
• Purely references the FA340901037 part number as the best guide for compatibility and fit
• Ideal for service, retrofit projects, and orderly replacement of worn or failed breakers in established systems

Important note: Confirm fit and ratings before ordering. The FA340901037 part number is the best reference for compatibility with your panel, and this unit is intended for plug-in panels that accept 3-pole devices.

Compatibility and practical considerations

To ensure safe, reliable operation, verify your panel model accepts plug-in breakers of the three-pole variety and that the FA340901037 matches the required ratings for your installation. Use the part number as the primary reference when cross-checking with your maintenance or retrofit plans. This breaker is designed to slot into compatible Square D panels, supporting straightforward upgrades or replacements without extensive wiring work.

Who this is for and how it helps

• Facilities managers and technicians performing routine maintenance in commercial or light industrial environments
• Electrical engineers executing retrofit projects that require restoring three-phase protection with minimal downtime
• Maintenance teams seeking a reliable, plug-in solution for replacing worn or failed 3-pole breakers

In short, the Square D FA340901037 3-Pole Plug-In Circuit Breaker combines a practical plug-in installation with robust three-phase protection, designed to keep your system protected and operational while simplifying service timelines. When ordering, rely on the FA340901037 part number to ensure you’re selecting the exact fit for your Square D panel and application.