Q221200AB - 200 Amp Circuit Breaker

Q221200AB - 200 Amp Circuit Breaker

When you’re replacing a breaker in an existing electrical system, the details have to match. The Q221200AB is a 200-amp, 2-pole Q2 molded case circuit breaker with a Q-Frame design, I-Line plug-on connection, and A-B phasing. It is rated at 10 kA at 120/240 VAC and uses a thermal-magnetic trip mechanism for overload and short-circuit protection. Measuring 7.88 inches high, 3 inches wide, and 4.31 inches deep, this breaker is intended for compatible equipment that requires this specific combination of frame, phasing, mounting style, and electrical ratings. That makes it especially useful when maintaining older electrical distribution equipment where matching the original form, fit, and function is the priority. The molded case construction provides a solid enclosure for the internal components and is built to last when the breaker is properly installed and used within its specified ratings. If you’re trying to match an existing Q221200AB, check the complete specifications, not just the amperage, to make sure the breaker is right for your application.

Key Features and Benefits

• 200-amp, 2-pole design for compatible applications that require this specific rating and pole configuration.
• Rated 10k AIC at 120/240VAC for use within the stated electrical specifications.
• Thermal-magnetic operation provides overload and short-circuit protection.
• Q2 type with Q-Frame construction for equipment designed around this breaker configuration.
• I-Line plug-on connection allows the breaker to fit compatible I-Line equipment.
• A-B phasing is suitable for applications requiring this phase arrangement.
• Molded-case construction protects the internal breaker components and is built to last under proper operating conditions.
• A practical choice for maintenance and replacement work in compatible legacy electrical systems where matching the existing breaker is important.

Technical Specifications

• Part Number: Q221200AB
  
• Type: Q2
  
• Frame: Q-Frame
  
• Breaker Type: Molded Case Circuit Breaker
  
• Poles: 2
  
• Amperage: 200A
  
• Voltage: 120/240VAC
  
• A.I.C. Rating: 10 kA
  
• Trip Type: Thermal Magnetic
  
• Connection: I-Line, Plug-On
  
• Phasing: A-B
  
• Height: 7.88 in.
  
• Width: 3.0 in.
  
• Depth: 4.31 in.
  

Material Compliance and Certifications

• Material compliance information and specific agency certifications were not included in the available product specifications. If your installation requires a specific certification, listing, or material compliance standard, confirm the markings and documentation for the individual breaker before installation.
• Electrical requirements can vary by equipment and application, so the breaker should only be used where its ratings and configuration meet the requirements of the existing system. Installation should be handled by a qualified electrical professional and completed in accordance with applicable electrical codes.

Where It Works Best

• The Q221200AB circuit breaker makes the most sense for compatible legacy electrical equipment designed for a 200A, 2-pole Q2 Q-Frame breaker with an I-Line plug-on connection and A-B phasing. Typical applications include maintenance, repair, and replacement projects where keeping the original breaker configuration is necessary.