QGA221751 - 175 Amp Circuit Breaker

QGA221751 - 175 Amp Circuit Breaker

The QGA221751 PowerPact Q-Frame molded case circuit breaker is a 2-pole, 175-amp breaker designed for use in I-Line panelboard systems requiring dependable branch circuit protection at 240VAC. Built in the QGA frame configuration, this thermal magnetic breaker delivers a 65kA A.I.C. rating at 240VAC, making it well-suited for commercial and industrial electrical distribution systems where higher available fault currents must be addressed. Its plug-on I-Line mounting design simplifies installation within compatible panelboards, while the A-B phase configuration ensures proper alignment in designated systems. Designed for form, fit, and functional replacement, the QGA221751 provides consistent overcurrent and short-circuit protection in legacy and existing installations where Q-Frame breakers are specified.

Key Features and Benefits

• 175 Amp Continuous Rating: Suitable for branch circuits requiring dependable 175A overcurrent protection.
• 2-Pole Configuration: Provides protection for two phases in 240VAC applications.
• 65kA A.I.C. at 240VAC: Rated to interrupt high fault currents in commercial and industrial environments.
• Thermal Magnetic Trip Unit: Combines thermal overload protection with magnetic short-circuit response for reliable operation.
• PowerPact Q-Frame (QGA) Design: Engineered for compatibility with Q-Frame I-Line panelboard systems.
• Plug-On I-Line Mounting: Enables secure connection within approved I-Line distribution equipment.
• A-B Phase Configuration: Designed for correct phase alignment in applicable panel installations.
• Molded Case Construction: Built to last under standard operating conditions in demanding electrical systems.

Technical Specifications

• Part Number: QGA221751
  
• Manufacturer Series: PowerPact Q-Frame (QGA)
  
• Breaker Type: Molded Case Circuit Breaker
  
• Trip Type: Thermal Magnetic
  
• Poles: 2
  
• Amperage Rating: 175A
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity: 65kA at 240VAC
  
• Mounting Style: I-Line, Plug-On
  
• Phase Configuration: A-B Phase
  
• Frame Type: QGA
  
• Approximate Height: 7.88 in
  
• Ship Weight: 3.0 lbs
  

Material Compliance and Certifications

• Industry Standards: The QGA221751 circuit breaker is manufactured to meet applicable industry standards for molded case circuit breakers, including compliance with relevant UL listings and NEC requirements when installed in approved equipment.
• PowerPact Q-Frame Family: Molded case breakers in the PowerPact Q-Frame family are designed and tested to meet established performance and safety guidelines for overcurrent protection in commercial and industrial power distribution systems.
  

Where It Works Best

• I-Line panelboards within commercial facilities
• Industrial distribution systems operating at 240VAC
• Manufacturing plants with higher available fault current levels
• Institutional buildings such as hospitals, schools, and municipal facilities
• Service and feeder applications requiring 65kA interrupting capacity