Square D QBL22110 - 110 A, 2-Pole Circuit Breaker | AmpState

The Square D QBL22110 is a 110A, 2-pole molded case circuit breaker designed to protect branch circuits within panelboards and loadcenters. Built for dependable overcurrent and short-circuit protection, it delivers reliable performance while occupying minimal space in your electrical panel.

• Compact molded-case design maximizes panel space and enables cleaner, more efficient panel layouts in tight installations.
• Thermal-magnetic trip unit provides stable, repeatable protection across varying load conditions, reducing nuisance trips and safeguarding connected circuits.
• OEM-load center compatibility engineered to fit with matching Square D panelboards and loadcenters, ensuring proper electrical coordination and a seamless replacement when upgrading or expanding panels.
• Versatile applications suitable for residential, commercial, and light industrial environments where dependable branch-circuit protection is required.

Technical snapshot

• Manufacturer: Square D
• Part Number: QBL22110
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 110A
• Number of Poles: 2
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases

In a home setting, this 2-pole 110A breaker can protect feeders and branch circuits serving essential loads, providing a reliable response during overloads or faults. For small to mid-sized commercial panels, it supports lighting and receptacle circuits while preserving panel space for future growth. In light industrial environments, the QBL22110 offers robust protection for control circuits and equipment, balancing dependable performance with a compact footprint.

Installation and care tips

Ensure you pair the QBL22110 with compatible Square D load centers and panelboards. Always confirm that the panel’s rating aligns with the breaker's 110A capacity and follow local electrical codes during installation. Secure all connections according to the manufacturer’s torque specifications and include routine inspection as part of standard panel maintenance.

With its space-saving design, precise thermal-magnetic protection, and strong OEM compatibility, the Square D QBL22110 stands out as a dependable choice for safeguarding electrical circuits across a range of applications.