Square D | FA341001021 | Circuit Breaker | 100A | 3-Pole | 480V

Meet the Square D FA341001021 circuit breaker—a precise 100-amp, 3-pole protection device engineered for 480V systems. Built for maintenance, retrofit, and replacement tasks, this breaker slots into compatible Square D panels with confidence, helping you keep critical equipment online with minimal downtime.

Key specifications

• Amperage: 100A
• Poles: 3-Pole
• Voltage rating: 480V
• Part number: FA341001021
• Brand: Square D

What makes this breaker stand out

Unlike generic equivalents, this FA341001021 model is matched to specific Square D configurations, simplifying ordering and installation. The three-pole format supports 3-phase protection in larger electrical panels, delivering coordinated protection across all three live conductors at the required 480V level.

Best-use scenarios

• Retrofit projects in industrial or commercial facilities upgrading from older protection devices
• Maintenance replacements in service entrances and distribution panels that require 100A protection
• New installations in systems that run at 480V three-phase power, where a reliable, compatible 3-pole breaker is needed

How to ensure a proper fit

For accurate compatibility, use the part number FA341001021 as your primary reference. Confirm that the panel or enclosure requires a 100A, 3-pole, 480V protection device, and verify the schematics or labeling on the existing equipment before ordering.

Practical considerations

• Keep the exact part number handy in your maintenance log to simplify future replenishment.
• When replacing, follow your facility's safety protocols: disconnect power, verify absence of voltage, and consult the equipment manual for installation steps.
• Consider stocking a spare FA341001021 in your service inventory to reduce downtime during scheduled outages.

Invest in a proven protection solution that aligns with Square D panel ecosystems—the FA341001021 delivers dependable overload and short-circuit protection for 3-phase, 480V systems, with a straightforward reference point for procurement and compatibility.