Square D FAL34090 - 90 A, 480 V, 3-Pole Circuit Breaker | AmpState

Meet the Square D FAL34090 — a 90 A, 480 V, 3‑pole molded case circuit breaker engineered to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Built for reliability in demanding electrical environments, it’s a smart choice for upgrading or installing protection in commercial and light-industrial settings.

• Compact molded-case design maximizes panel space and simplifies installation in tight or crowded panels, helping you fit more protection without expanding the footprint.
• Thermal-magnetic trip unit provides stable, repeatable protection by responding to both overloads (thermal) and short circuits (magnetic), reducing nuisance trips and ensuring predictable safety performance.
• OEM-compatible integration designed for seamless compatibility with matching Square D OEM load centers and panelboards, ensuring proper fit, torque, and electrical coordination across your protection system.
• Versatile application suitable for residential, commercial, and light-industrial electrical distributions that require reliable 480 V protection for critical circuits.

Technical snapshot

• Amperage Rating: 90 A
• Voltage Rating: 480 V
• Number of Poles: 3
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection

Why this matters for your panelwork

Choosing the Square D FAL34090 ensures you’re pairing a robust protection device with a design that fits neatly into standard Square D panelboards and load centers. It delivers dependable fault interruption for feeders and branch circuits, helping protect conductors, devices, and downstream equipment from damage due to overloads or short circuits. The 3‑pole configuration supports 3‑phase systems common in commercial and light-industrial environments, while the 480 V rating accommodates higher voltage distributions found in professional installations.

Ideal use cases

• Upgrading aging protection in panelboards and load centers that require 90 A, 3‑pole 480 V breakers
• Protecting critical feeders in commercial spaces, manufacturing environments, and service panels
• Direct replacement in Square D OEM panels to maintain consistent performance and coordination

Practical guidance for deployment

Verify compatibility with your specific Square D load center or panelboard model, ensuring the FAL34090’s trip characteristics and terminal torque align with your installation. Pair with appropriate conductors and follow standard electrical safety practices to achieve the intended protection level and service continuity.