Square D FI36100 - 100 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D FI36100—a 100 A, 600 V, 3-pole Plug-In Molded Case Circuit Breaker designed to safeguard panelboards and load centers with precision and reliability. Built for fast installation and dependable protection, this unit is ideal for residential, commercial, and light industrial applications where uninterrupted power and safe fault isolation matter.

• Fast plug-in connection enables quick installation and effortless replacement during panel upgrades or servicing, reducing downtime and project timelines.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance across varying temperatures and fault conditions, helping prevent nuisance trips and ensuring consistent circuit protection.
• Three-pole design provides coordinated protection for three-phase circuits, ensuring simultaneous interruption on all phases for balanced system safety.
• OEM compatibility is tuned to pair with matching Square D load centers and panelboards, delivering a reliable fit and predictable behavior in field installations.
• 100 A, 600 V ratings cover a broad range of branch circuits in commercial and light industrial environments, from large lighting runs to motor-driven loads.
• Plug-in molded case construction combines rugged durability with compact form, suited for dense panel arrangements and frequent maintenance cycles.

Technical specifications

• Manufacturer: Square D
• Part Number: FI36100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal uses and practical scenarios

Use the FI36100 when you’re expanding a panelboard to support new loads or replacing aging breakers that no longer meet performance expectations. It’s well-suited for main or subpanel applications in commercial spaces, light industrial facilities, and multi-residence buildings. The 3-pole design makes it a smart choice for three-phase systems, while the plug-in format simplifies field installation and serviceability without sacrificing reliability.

Why this breaker stands out

Beyond basic specs, the FI36100 delivers tangible benefits on the job:

• Predictable protection that you can count on during peak demand or fault conditions, thanks to the thermal-magnetic trip mechanism.
• Easy compatibility with Square D OEM panelboards and load centers, reducing guesswork during replacements and ensuring a clean, secure connection.
• A robust build suitable for demanding environments, where reliable circuit protection protects both people and equipment.

Whether you’re upgrading a residential service panel, outfitting a commercial distribution board, or integrating a new subpanel in a light industrial setting, the Square D FI36100 100 A, 600 V, 3-Pole Plug-In Molded Case Circuit Breaker offers fast installation, dependable protection, and compatible, field-ready performance.