Square D FCJ34080 80A 3-Pole 480 V Circuit Breaker

Meet the Square D FCJ34080 80A 3-Pole 480 V Circuit Breaker—a rugged, dependable protection device designed for demanding industrial and commercial electrical systems. With an 80-amp current rating, three poles for 3-phase protection, and a 480-volt operating capability, this breaker is built to interrupt fault currents cleanly and safeguard downstream equipment, wiring, and personnel.

Why this 3-Pole, 480V breaker stands out

• Three-pole protection provides coordinated safeguarding for 3-phase motors, drives, and heavy loads, helping prevent damage from overloads or short circuits.
• 80A rating aligns with common industrial circuits and motor feeders, offering precise protection without unnecessary interruptions for normal startup surges.
• 480 V electrical compatibility makes it suitable for mid-to-large scale industrial distributions, commercial equipment rooms, and facilities that operate at higher voltage levels.
• Square D reliability pairing with existing Square D panels and FCJ-series components ensures consistent performance, electrical compatibility, and streamlined maintenance.

Ideal use cases

• Upgrading or replacing a failed breaker in a 480V 3-phase distribution panel serving motors, pumps, conveyors, and compressors.
• Protected feed for electrical rooms that power HVAC systems, processing equipment, or heavy-duty manufacturing lines.
• Spare or replacement for facilities deploying Square D FCJ-series protection in industrial control cabinets and switchgear.

Practical guidance for installation and operation

Before installation, verify panel compatibility with FCJ34080 and confirm that the circuit requires a 3-pole, 80A, 480V protection device. When replacing a breaker, power should be fully isolated and tools rated for high-voltage work should be used. Tighten terminal connections to the manufacturer’s recommended torque, and ensure downstream wiring matches the 3-phase configuration to maintain proper protection coordination.

What makes this option a smart choice

• Designed for reliable performance in demanding environments where 480V three-phase power drives critical equipment.
• Aligns with existing Square D infrastructure, reducing compatibility concerns and installation time.
• Provides clear protection for high-value loads, helping minimize downtime and equipment wear from electrical faults.

Whether you’re stocking spare parts for an industrial facility, upgrading an aging distribution panel, or aligning with a 3-phase 480V workflow, the Square D FCJ34080 80A 3-Pole 480 V Circuit Breaker delivers solid, dependable circuit protection that keeps systems up and running. Part number FCJ34080 directly identifies this exact protection device, helping you source a precise replacement or addition to your protection strategy.