Square D FCJ34030 30A Circuit Breaker 480V 3-Pole

Meet the Square D FCJ34030 circuit breaker—an exacting, dependable solution for 480V three‑phase power that keeps critical equipment protected and operations running smoothly. With a 30‑amp rating across 3 poles, this unit provides balanced, coordinated protection for multi‑phase circuits, helping minimize downtime and equipment wear in demanding industrial environments.

Designed for maintenance, retrofit, and replacement projects, the FCJ34030 is your compatibility benchmark. This is the exact reference you’ll want when upgrading or restoring a panel to its original protection characteristics. Always confirm fit and ratings before ordering—the part number FCJ34030 is the most reliable guide to compatibility with Square D panels and associated bus assemblies.

• Amperage: 30 A
• Poles: 3-Pole
• Voltage: 480 V
• Reference: FCJ34030

Who this is for: electrical engineers, maintenance technicians, and OEM integrators working with 480V three‑phase systems in manufacturing lines, processing plants, and large commercial facilities. It’s ideal for upgrading aging panels, repairing failed breakers, or performing controlled retrofits where exact spec replacement is critical to maintaining system integrity and safety.

Key benefits and practical uses:

• Direct‑fit replacement that preserves original protection characteristics, reducing installation guesswork and panel downtime.
• Consistent 3‑pole protection across all phases to avoid uneven load handling or phase imbalances in 480V distributions.
• Part-centric reliability: using FCJ34030 ensures you’re matching the exact form, function, and electrical behavior expected by your Square D panel.
• Versatile for retrofit projects, maintenance tasks, and straightforward replacements in facilities that rely on 480V three‑phase power.

Practical tips for a smooth purchase and install: verify that your panel or equipment calls for a 30A, 3‑pole, 480V breaker and that the part number FCJ34030 aligns with your reference drawings or panel labeling. Keep a record of the exact part number to ensure future replacements remain consistent with your existing protection scheme.