Square D | QOB220H | Circuit Breaker | 20A | 2-Pole | 240V | Bolt-On

The Square D QOB220H is a purpose-built solution for reliable 20A protection on 240V two-pole circuits, designed for maintenance, retrofit, and replacement projects where exact specs matter. This bolt-on circuit breaker is a precise fit for panels that accept QOB-style units, delivering a secure, dependable connection in demanding electrical environments. Key details at a glance

• Amperage: 20A
• Poles: 2-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Compatibility: Part number QOB220H is the best reference for matching panels—always confirm fit and ratings before ordering.

Why this breaker stands out

• Exact-match compatibility: Identified by the part number QOB220H, ensuring you’re sourcing the right bolt-on breaker for Square D panels that accept QOB units. Using the correct part number minimizes the guesswork in retrofit projects.
• Bolt-On reliability: The bolt-on mounting provides a secure, vibration-resistant connection ideal for installations where panel integrity and consistent contact matter, helping to protect critical 240V circuits over time.
• Targeted 20A, 240V, 2-Pole configuration: Specifically suited for two-pole 240V branch circuits, making it a straightforward choice for dedicated loads while preserving panel space and wiring efficiency.

Who it’s ideal for

• Electricians performing panel maintenance, retrofit, or replacement in Square D bolt-on compatible panels
• Facilities managers updating older electrical systems to match current safety standards
• Home and small-business projects requiring a reliable 20A, 240V two-pole solution that fits bolted-on Square D panels

Practical use cases and guidance

• Replacing a worn or failed 20A, 240V two-pole breaker in a compatible panel without reconfiguring the entire panel layout
• Retrofit scenarios where bolt-on protection is mandated or preferred for enhanced mechanical stability
• New installations in panels that specify QOB bolt-on breakers for straightforward sourcing and consistent performance

Installation notes and best practices

• Always verify fit and ratings against your panel’s labeling before purchase. The QOB220H is the definitive reference for compatibility.
• Power down the main and follow standard electrical safety procedures prior to replacement or installation.
• Ensure the load is within the 20A rating and that the circuit it protects aligns with a 240V, two-pole arrangement in the panel’s design.

In short, the Square D QOB220H delivers a precise, bolt-on solution for 20A, 240V two-pole circuits in compatible panels. It’s engineered for dependable performance in maintenance, retrofit, and replacement scenarios, backed by Square D’s reputation for reliability and compatibility. If your project requires exact matching specs and a secure bolt-on connection, this is the breaker to choose.