Square D QDM22110TN 110A 2-Pole 240 V Circuit Breaker

Introducing the Square D QDM22110TN 110A 2-Pole 240 V Circuit Breaker—a purpose-built protector for your 240-volt branch circuits. This two-pole device is engineered to interrupt both live conductors on fault, helping to prevent wiring damage and safeguard connected equipment. As part of the Square D QDM family, it’s designed for compatibility with panels that accept QDM breakers, delivering dependable performance in residential and light commercial setups.

Why choose the QDM22110TN

• Exact part number QDM22110TN for straightforward compatibility and replacement in Square D panels that accept QDM breakers.
• 110 amp current rating to safeguard mid-to-high-load 240V circuits while allowing efficient use of connected devices.
• Two-pole design ensures simultaneous interruption of both hot legs on a fault, reducing the risk of shock or damage from unbalanced currents.
• Voltage rating of 240 V makes it suitable for common 240V branch circuits such as HVAC systems, electric water heaters, and large appliances.
• Rugged construction built to endure routine operation within electrical panels, supporting reliable protection over time.

Ideal use cases

• Replacement for aging 110A, 2-pole breakers in Square D distribution panels.
• Protection for 240V branch circuits in homes or light commercial spaces, including HVAC equipment, water heating, pool equipment, and sizable power tools.
• New installations requiring dedicated 110A, 2-pole 240V protection for a specific circuit load.

Specs at a glance

• Part Number: QDM22110TN
• Current Rating: 110 A
• Poles: 2
• Voltage Rating: 240 V
• Type: 2-Pole Circuit Breaker (QDM family)

Installation considerations

Verify that your panel supports QDM-type breakers and that the circuit load aligns with the 110 A protection rating. For safety and code compliance, enlist a licensed electrician for installation and follow the panel manufacturer’s guidelines. Ensure wiring gauge, insulation, and enclosure ratings are appropriate for 240 V and 110 A protection requirements.