Square D QBA221002 - 100 A, 2-Pole Plug-In Circuit Breaker | AmpState

The Square D QBA221002 is a robust 100 A, 2-pole plug-in molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for quick upgrades and easy servicing, this breaker takes the complexity out of panel maintenance with a straightforward plug-in connection that reduces downtime and simplifies replacements.

Key benefits you’ll feel on the job

• Fast plug-in connection: snap-in installation for rapid wiring and simple swaps during upgrades or repairs, keeping projects on schedule.
• Thermal-magnetic trip unit: combines overload protection with short-circuit interruption, delivering stable, repeatable protection performance across varying loads.
• OEM compatibility: engineered to be fully compatible with matching Square D OEM load centers and panelboards, ensuring dependable coordination and reliable operation.
• Versatile applications: suitable for residential, commercial, and light industrial environments where dependable protection and quick servicing matter most.

Technical specifications at a glance

• Manufacturer: Square D
• Part number: QBA221002
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100 A
• Poles: 2
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and practical scenarios

Designed for panelboard and loadcenter environments, this plug-in breaker is ideal when upgrading service capacity or replacing aging units. It’s well-suited for:

• Residential service panel upgrades where a reliable 100 A two-pole protection device is required for large circuits or feeders
• Commercial distribution panels and light industrial load centers needing quick, maintenance-friendly replacements
• Retrofits in existing Square D systems that demand exact OEM compatibility to maintain protection coordination

Why this breaker stands out

What sets the Square D QBA221002 apart is its combination of fast installation, consistent protection, and compatibility that minimizes integration issues. The plug-in design reduces installation time and equipment downtime, while the thermal-magnetic trip ensures that both poles trip together on a fault, preserving circuit integrity and safety across your electrical system. When you’re balancing reliability, speed, and compatibility in panel upgrades or service calls, this 2-pole 100 A breaker from Square D delivers predictable, dependable performance.

Tips for optimal performance

• Verify the target panelboard or load center is listed for plug-in equivalents in the Square D QBA family to ensure seamless operation.
• Store spare breakers in a clean, dry environment and handle with care to avoid mechanical damage to the plug-in terminals.
• Label the new breaker in your panel schedule to reflect its circuit role and ensure easy future servicing.

Available from AmpState, the Square D QBA221002 100 A, 2-pole plug-in molded case circuit breaker provides dependable, easy-to-install protection for your electrical system—delivering peace of mind for both installers and end users.