Square D QDM22100TN 100A 2-Pole 240 V Circuit Breaker

The Square D QDM22100TN 100A 2-Pole 240 V circuit breaker is engineered to deliver dependable overcurrent protection for 240-volt systems. With the exact part number QDM22100TN, it’s designed for precise compatibility in qualified Square D panels, making it a reliable choice for replacements, repairs, or panel upgrades.

Key specifications at a glance

• Model/Part: QDM22100TN
• Current rating: 100 A
• Poles: 2
• Voltage rating: 240 V

What makes this breaker stand out

Designed to protect 240V two-pole circuits, the QDM22100TN provides crisp, reliable interruption when electrical faults occur, helping prevent damage to downstream equipment and reducing fire risk. Its 100-amp rating makes it suitable for main feeders and high-load circuits in both residential and light commercial settings, delivering steady performance where large loads demand solid protection.

Ideal use cases

• Replacement part for existing 2-pole 240V circuits in compatible Square D panels
• Feeder protection for subpanels or high-load appliances operating at 240V
• Upgrades or repairs in dashboards, service entrances, or commercial electrical setups that require 100A protection

Practical guidance for use

For optimal results, ensure the panel and the breaker are compatible, and install according to local electrical codes. If you’re upgrading or replacing existing hardware, stock the QDM22100TN to maintain consistent protection across your 240V circuits. When in doubt, consult a licensed electrician to confirm fitment and safety.

Choose the Square D QDM22100TN 100A 2-Pole 240 V circuit breaker for clarity in specification, straightforward installation in compatible panels, and dependable protection you can trust for demanding 240-volt circuits.