Square D QO245GFI - 45 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

The Square D QO245GFI is a robust 2-pole, 45 amp, 240-volt plug-in molded case circuit breaker built to safeguard your electrical system with dependable branch-circuit overcurrent and short-circuit protection. Designed for quick changes in panelboards and load centers, this breaker blends reliable protection with streamlined serviceability for a wide range of settings.

• Fast plug-in connection: Simplified installation and rapid replacement minimizes downtime in panel enclosures.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection across varying loads and temperatures, helping prevent nuisance trips while staying responsive to genuine faults.
• OEM compatibility: Engineered to fit and perform with matching Square D QO load centers and panelboards for a seamless, code-compliant upgrade or replacement.
• Versatile applications: Ideal for residential, commercial, and light industrial environments where reliable 45 A, 240 V protection is required.
• Molded case, plug-in design: Combines rugged construction with straightforward, tool-free installation in standard panelboards.

Technical snapshot

• Manufacturer: Square D
• Part Number: QO245GFI
• Type: Thermal-magnetic molded case circuit breaker
• Amperage: 45 A
• Voltage: 240 V
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Who should consider the QO245GFI? electricians upgrading panelboards in homes or small facilities, contractors selecting reliable protection for commercial spaces, and maintenance teams overseeing light industrial electrical infrastructure. If you need a dependable, code-friendly solution that installs quickly and pairs with existing Square D panels, this 2-pole 45A breaker is a practical, long-term choice.

Practical tips for optimal performance: pair this breaker with a compatible QO load center to maintain labeling clarity and coordinated trip characteristics; follow manufacturer torque specifications and electrical codes during installation; and plan for future load growth by evaluating nearby circuits to determine if a larger or additional protection device may be beneficial.