Square D | QDA221101 | Circuit Breaker | 110A | 2-Pole

Meet the Square D QDA221101 circuit breaker — a purpose-built protection device engineered for reliability in maintenance, retrofit, and replacement projects where exact specifications matter. With a 110A rating and a two-pole design, this breaker provides coordinated protection for two conductors, helping you safeguard multi‑wire circuits and essential equipment.

• Exact compatibility for your project: Part number QDA221101 is the most reliable reference for matching your panel requirements. Always confirm fit and ratings before ordering to ensure a seamless installation.
• 110A, 2-pole design: Delivers robust overcurrent protection across both hot legs, promoting safer shutdown and reducing the risk of nuisance trips in demanding electrical environments.
• Maintenance, retrofit, and replacement ready: Specifically suited for upgrading aging systems, replacing failed breakers, or retrofitting panels that require the 110A, 2-pole configuration.
• Built by Square D for dependable performance: Designed to meet industry standards and deliver long-term reliability in commercial, industrial, and residential panels that rely on quality protective devices.

Who benefits most: electricians, facilities managers, and property owners tackling panel maintenance or upgrades where precise protection levels and pole configuration are critical. Use cases include upgrading legacy panels to maintain code compliance, replacing a worn-out breaker without compromising circuit protection, or integrating into a new installation that demands an exact 110A, two‑pole solution.

Practical guidance: always verify the panel’s acceptance of QDA-type breakers and compare both amperage and pole count to your existing setup. Since the part number is your best compatibility reference, keep it handy during ordering and cross-check against your panel label or manufacturer documentation. When in doubt, consult a licensed electrician to confirm proper fit and safe installation.

In short, the Square D QDA221101 110A 2-pole circuit breaker is a precise, reliable choice for maintenance, retrofit, and replacement tasks where matching specs is non-negotiable. It’s more than a component — it’s a safeguard for the systems you rely on.