Square D FA34100 - 100A, 3-Pole, Molded Case Circuit Breaker

Introducing the Square D FA34100 — a 100A, 3‑Pole molded case circuit breaker designed for dependable overcurrent protection in professional electrical systems. Built for panelboards, switchboards, and control panels, this device helps keep industrial, commercial, and OEM equipment safe and operational.

Why the FA34100 stands out

• Precise 100-amp protection: Delivers solid current limiting for feeders and branch circuits in mid‑size distributions, helping prevent damage from overloads.
• Three-pole design: Ensures coordinated interruption across all three phases for 3‑phase loads, enhancing overall system safety.
• Molded case construction: Robust insulation in a compact footprint simplifies installation within standard enclosures and reduces panel depth requirements.
• Versatile installation: Optimized for panelboards, switchboards, and control panels in a wide range of applications—from manufacturing floors to data centers.

Where you’ll use it

Perfect for motor control centers, conveyors, pumps, HVAC equipment, and other machinery that rely on reliable 3‑phase protection. It’s an ideal main or feeder breaker in distribution panels and a trusted choice for OEM control cabinets requiring consistent, predictable shutdown in fault conditions.

What makes it meaningful

In demanding environments, predictable protection minimizes downtime and protects wiring, components, and personnel. The FA34100 delivers trustworthy performance in continuous operation, helping facilities meet safety standards while keeping critical systems online.

Practical guidance for use

• Match the breaker to your enclosure’s rating and three‑phase installation needs for seamless integration.
• Consider the FA family’s compatibility within Square D ecosystems to streamline parts availability and serviceability in future maintenance.
• Pair with routine inspection and testing per local electrical codes to maintain protection performance over time.

Specifications at a glance

• Current rating: 100 A
• Poles: 3‑Pole
• Breaker type: Molded Case Circuit Breaker
• Application spectrum: Distribution panels, motor control centers, and control panels in industrial, commercial, and OEM settings