Square D QDA221002 - 100 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

Upgrade your electrical protection with the Square D QDA221002 from AmpState: a 100A, 240V, 2-pole plug-in molded case circuit breaker designed for fast, dependable branch circuit protection in panelboards and load centers. Built to keep demanding electrical systems safe, this breaker delivers predictable performance when it matters most.

Why this breaker stands out

• Fast plug-in connection for quick installation and effortless replacement, reducing downtime during service or upgrades.
• Thermal-magnetic trip unit provides stable, repeatable protection, automatically adjusting to changing load conditions to curb nuisance trips while guarding against short circuits.
• OEM compatibility is engineered to align with matching Square D load centers and panelboards for a seamless, code-compliant fit.
• Versatile across applications ideal for residential, commercial, and light industrial panel configurations that rely on reliable overcurrent protection.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: QDA221002
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases and benefits

Designed for panel-integrated protection, the QDA221002 excels in protecting branch circuits that feed essential equipment, lighting, outlets, and feeders in both new constructions and upgrade projects. It’s particularly advantageous when you need:

• A reliable, code-compliant solution that fits directly into existing Square D panelboards with minimal modification.
• A quick replacement option during maintenance windows, thanks to its plug-in design.
• Consistent tripping behavior across a range of loads and fault conditions, reducing unexpected outages.

Installation and maintenance tips

• Before installation, confirm panel compatibility with QDA-series breakers and ensure power is disconnected.
• Install in the correct bus position according to panel labeling to maintain proper trip coordination.
• Torque connection points to the manufacturer’s specifications to guarantee reliable electrical contact.
• Regularly inspect for signs of wear or corrosion at the plug-in terminals and replace if needed.

Whether you’re upgrading a residential service panel, outfitting a small commercial distribution board, or refreshing a light industrial installation, the Square D QDA221002 delivers dependable, repeatable protection with plug-in convenience. Trust AmpState to provide authentic Square D components built for longevity and compliant performance.