Square D QOB2110VH - 110 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Square D QOB2110VH is a dependable, heavy-duty solution for protecting branch circuits in residential, commercial, and light industrial panelboards. At 110A and 240V, this 2-pole bolt-on molded case circuit breaker delivers precise, reliable protection where it matters most, keeping wiring and equipment safe from overcurrent and short-circuit events.

Why this breaker stands out

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection that stays tight through operation and movement—ideal for panels in demanding environments.
• Thermal-magnetic trip unit combines time-delayed thermal protection with instantaneous magnetic trip for fast response to short circuits, delivering stable, repeatable protection performance over time.
• Panelboard compatibility is designed to work with matching OEM load centers and panelboards, ensuring plug-and-play reliability when you’re upgrading or repairing a system.
• 2-pole, 240V configuration tailored for common 240V circuits and multi-wire branch circuits where two-pole protection is required.
• 110A rating provides a balanced protection level for mid-range loads in a variety of applications, helping prevent nuisance trips while safeguarding conductors and devices.
• Durable, molded-case construction built to endure regular operation, electrical noise, and environmental factors typical of commercial and light-industrial settings.

Ideal use cases

• New panel installations or upgrades in residential homes, office spaces, retail environments, and light manufacturing facilities where 2-pole 110A protection is appropriate.
• Replacement for aging or failed QOB-series Breakers in compatible Square D panelboards and load centers, minimizing downtime and compatibility concerns.
• Retrofits or service panel work that require reliable 240V, two-pole protection for critical circuits such as HVAC feeders, large appliances, or motor-related loads.

Practical considerations and tips

• Verify that your panelboard accepts bolt-on QOB breakers and that the QOB2110VH is the correct amperage and pole configuration for your circuit.
• Follow the manufacturer’s torque specifications during installation to maintain a solid electrical connection and meet safety standards.
• Pair this breaker with appropriately sized conductors and consider coordinated protection with nearby devices to optimize overall system safety and performance.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: QOB2110VH
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 110A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Whether you’re protecting a critical load in a busy panel or performing a precise upgrade to your electrical distribution, the Square D QOB2110VH delivers dependable protection with a design that fits seamlessly into compatible panelboards and loadcenters. It’s the practical, long-lasting choice for reliable electrical safety in a variety of settings.