Square D QO220AS 220A 2-Pole 240 V Circuit Breaker Potential Transformer

Protect high-demand electrical circuits with precision using the Square D QO220AS 220A 2-Pole 240 V Circuit Breaker. This reliable Square D component—Part Number QO220AS—delivers robust overcurrent protection for demanding 240-volt systems, thoughtfully designed to fit within the Square D QO family of panels.

• Current rating: 220 A
• Poles: 2
• Voltage rating: 240 V
• Part number: QO220AS
• Series: Square D QO (2-pole, high-current protection)

Why this 220A, 2-Pole breaker matters

When you’re protecting sizable feeders or high-load circuits, a 220 A, two-pole solution ensures both hot legs disconnect together. This coordinated shutdown is essential for safe operation of 240-volt equipment and reduces the risk of half-switched voltage scenarios that can harm devices or personnel.

Designed for the Square D QO ecosystem

As part of the QO family, this breaker is engineered for reliable compatibility with Square D QO panels and load centers. That means smoother installation, straightforward replacement, and consistent protection without compromising performance.

Ideal use cases

• High-current feeders feeding large subpanels in commercial settings
• Protection for 240-volt circuits that require a robust 220 A limit
• Panel modernization or upgrades where a 2-pole, 240 V breaker is specified

What makes it stand out

The QO220AS isn’t just about meeting a spec—it’s about dependable, predictable protection for critical loads. With a solid 220A capacity and a 2-pole design, it provides clear, decisive interruption when faults occur, helping safeguard wiring, motors, and connected equipment while supporting long-term panel reliability.

Practical considerations

For best results, ensure this breaker is used in compatible Square D QO panels and that the circuit’s load characteristics align with a 220 A, 2-pole, 240 V protection strategy. Proper installation by a qualified electrician will help maintain system safety and performance.