Square D | Q221175AB | Circuit Breaker | 2-Pole | 240V

The Square D Q221175AB 2-Pole 240V circuit breaker is built for dependable protection in maintenance, retrofit, and replacement projects. Designed to align with Square D panels and the exact specifications of the Q221175AB part, it offers a precise fit and reliable performance where you need it most.

Why this 2-Pole, 240V breaker stands out

When you’re upgrading or repairing an electrical system, exact compatibility matters as much as protection. The Q221175AB is engineered to deliver consistent 240V two-pole protection, helping ensure both safety and circuit integrity. Its construction and design are tailored to maintain proper contact, predictable trip behavior, and long-term reliability in compatible Square D panels.

Core benefits

• Exact matching reference: Part number Q221175AB is your best reference for compatibility—confirm fit and ratings before ordering.
• Two-pole, 240V protection: Ideal for 240V circuits that require simultaneous isolation of both hot lines, such as multi-wire branch circuits and common 240V loads.
• Maintenance-ready: A straightforward replacement option when upgrading, repairing, or retrofitting existing Square D installations.
• Reliable performance: Built to deliver stable protection and predictable trip behavior in approved Square D panels.

Ideal use scenarios

• Replacing a failed 2-pole 240V breaker in residential or light commercial Square D panels during a retrofit project.
• Implementing a dedicated 240V circuit for appliances and equipment such as air conditioning units, water heaters, or other heavy-load devices that require simultaneous hot-line switching.
• Upgrading older electrical infrastructure where a direct part-number match to Q221175AB ensures clean compatibility with existing bus stabs and panel hardware.

Installation and compatibility tips

• Always verify fit and ratings against your panel’s labeling and the panel’s documented compatibility list before installation.
• Turn off the main power and follow standard electrical safety procedures. If you’re unsure about panel compatibility, consult a licensed electrician.
• Store and handle the breaker with care to avoid damage to the internal trip mechanism or contacts prior to installation.

Specifications at a glance

• Poles: 2-Pole
• Voltage: 240V
• Part number: Q221175AB
• Application: Maintenance, retrofit, and replacement where exact compatibility is required