Square D | QGA221001 | Circuit Breaker | 100A | 2-Pole | 240V | 65kA

Square D QGA221001 Circuit Breaker — 100A, 2-Pole, 240V, 65kA Interrupting Capacity

Meet a dependable solution for mainline protection and branch circuits in maintenance, retrofit, or replacement projects. The Square D QGA221001 is a two-pole circuit breaker engineered to deliver reliable protection where exact specs matter, ensuring your panels continue to operate safely and efficiently.

Designed for demanding electrical environments, this breaker combines robust interrupting capability with straightforward compatibility. With a 100 A rating and 240 V operating voltage, it guards against overloads and short circuits on substantial circuits while fitting into panels that accept QGA-style devices. Its 65 kA interrupting capacity provides a strong margin against high fault currents, helping protect wiring, devices, and downstream equipment.

• Amperage: 100 A
• Poles: 2-Pole
• Voltage: 240 V
• Interrupting rating: 65 kA
• Reference reference: Part number QGA221001 is the best compatibility identifier

This product is ideal for professionals and do-it-yourselfers tackling panel maintenance, retrofits, or replacements where exact specifications are required. Use cases include upgrading aging panels to modern protection standards, replacing a failed breaker in systems that demand a 2-pole, 100-amp, 240-volt solution, or matching a replacement within the Square D QGA family for consistent performance and form factor.

Why this matters: selecting the exact part number ensures you maintain the intended protection profile and fit within your existing panel enclosure. Before ordering, confirm that the panel accepts QGA breakers and that the ratings align with your circuit demands. The part number QGA221001 serves as the most reliable reference for compatibility, helping you avoid mismatches and unnecessary downtime.

Practical tips for best results: check your panel labeling to confirm acceptance of QGA series devices, verify that your load requirements align with a 100 A, 2-Pole, 240 V configuration, and consider future upgrades that may benefit from the 65 kA interrupting capacity. This approach minimizes the risk of compatibility issues and ensures a smooth installation process.