Square D FA32045 - 45 A, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D FA32045 is a 45A, 3-pole plug-in molded case circuit breaker engineered for dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Its fast plug-in connection simplifies installation and replacement, reducing downtime during maintenance and panel upgrades.

What makes this breaker stand out

• Fast plug-in connection: secure, straightforward installation and rapid swaps when a breaker trips or a panel needs updating.
• Thermal-magnetic protection: a dual-element trip unit provides stable, repeatable protection. The thermal component handles ongoing overloads, while the magnetic element delivers instantaneous response to severe short circuits.
• OEM-compatible design: engineered to match matching Square D OEM load centers and panelboards, ensuring proper fit, labeling, and coordinated protection across the system.
• Rugged molded-case construction: built to withstand the demands of panelboard environments in residential, commercial, and light industrial settings.
• Versatile applications: ideal for protecting branch circuits in homes, small offices, retail spaces, and light manufacturing installations.

Technical specifications

• Manufacturer: Square D
• Part Number: FA32045
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 45A
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

Use this 3-pole 45A plug-in breaker in panelboards and load centers where three-phase protection is required. It’s a reliable choice for upgrading existing panels or installing new equipment in residential multifamily, commercial spaces, or light industrial facilities. For best results, pair it with matched OEM components to ensure proper coordination and safety across your electrical distribution system.