Square D | Q221200AB | Circuit Breaker | 200A | 2-Pole | 240V

The Square D Q221200AB circuit breaker is a dependable, high-capacity protection solution designed for 240V systems. With a 200A rating and 2-pole configuration, it provides robust safeguarding for large branch circuits and main service feeders, making it ideal for maintenance, retrofit, and replacement projects where exact specifications matter.

Key Specifications

• Amperage: 200A
• Poles: 2-Pole
• Voltage: 240V
• Part number: Q221200AB

Why choose this model

• Designed for reliability in Square D panels that require a 200A, 240V, 2-pole protection device, enabling secure interruption of fault current and protection of connected equipment.
• Specifically identified by the part number Q221200AB, making compatibility checks straightforward and reducing guesswork during replacements or upgrades.
• Suitable across multiple contexts—whether you’re refreshing an aging panel, retrofitting to accommodate higher load demands, or replacing a failed breaker with a like-for-like specification.

Use cases and practical applications

• Main service disconnects in residential or light commercial panels that require 200A, 240V protection.
• Retrofit projects where existing hardware calls for a 2-pole, 240-volt breaker with a 200A rating.
• Replacement in systems where maintaining exact part references minimizes downtime and ensures continued panel compatibility.

Compatibility and installation notes

Before ordering, confirm the fit and ratings match your panel’s requirements. The part number Q221200AB is the most reliable compatibility reference, ensuring the breaker aligns with the panel design and electrical specifications of your system.

What to expect when you install

• Reliable interruption of 240V circuits up to 200A, helping to protect wiring, devices, and downstream components.
• Clear, traceable part identification facilitates future service or future replacements within the same Square D ecosystem.