Square D QOH2110 110A 2-Pole 240 V Circuit Breaker

Meet the Square D QOH2110 110A 2-Pole 240 V Circuit Breaker — a trusted, OEM solution for protecting 240-volt circuits with precision and reliability. Built for commercial and industrial panels that accept this line, it delivers consistent overcurrent protection when it matters most.

Key specifications at a glance

• Current rating: 110 A
• Poles: 2-pole configuration for 240 V circuits
• Voltage rating: 240 V
• Part number: QOH2110
• Brand and compatibility: Square D — designed to fit Square D panels and enclosures that support this line

This is more than a breaker — it’s a safeguard for high-demand equipment and feeders. By interrupting fault currents and overloads, it helps prevent wiring damage, electrical fires, and unexpected downtime in critical applications.

Ideal use cases

• Feeder protection for 240 V subpanels in commercial buildings
• HVAC systems, large air conditioning units, and heat pumps that require robust 110 A protection
• Motor circuits and heavy electrical equipment where reliable 2-pole protection is essential
• UPS, generator-fed circuits, or other high-current 240 V installations that demand OEM-quality components

Why choose the QOH2110

• Authentic Square D build quality ensures precise fit, reliable performance, and consistent trip behavior in compatible panels.
• OEM part for optimal compatibility minimizes installation surprises and warranty concerns when replacing a breaker in supported enclosures.
• Clear specification alignment with 110 A protection on 240 V circuits provides a straightforward solution for high-current loads without oversizing components.

Practical tips for installation and use

• Verify your panel accepts the QOH-series breakers and that the replacement matches the exact part number QOH2110 for proper seating and safety compliance.
• Before maintenance or replacement, shut off the main disconnect and test for zero voltage to avoid hazards.
• Label affected circuits clearly after installation to simplify future troubleshooting and inspections.

For professionals seeking dependable, purpose-built protection for 240 V circuits with substantial current needs, the Square D QOH2110 110A 2-Pole 240 V Circuit Breaker delivers the right balance of performance, compatibility, and peace of mind.