Q221125BC - 125 Amp Circuit Breaker

Q221125BC - 125 Amp Circuit Breaker

If you’re trying to match a Q221125BC circuit breaker in an existing electrical system, the small details matter. This 125A, 2-pole Q2 molded case circuit breaker has a Q-frame design, B-C phasing, and an I-Line plug-on connection. It is rated at 10 kA IC at 120/240 VAC and uses a thermal-magnetic trip mechanism for overcurrent protection. The breaker measures 7.88 inches high, 3 inches wide, and 4.31 inches deep. Those dimensions, along with the frame, phasing, amperage, and mounting configuration, are worth checking carefully when working with existing or legacy equipment. For applications that specifically call for the Q221125BC configuration, this breaker provides the form, fit, and function needed to maintain the original system setup. Its molded-case construction is designed for everyday electrical service and built to last when used within its intended ratings.

Key Features and Benefits

• 125A, 2-pole configuration for applications that call for these specific electrical characteristics.
• 10k AIC at 120/240VAC provides the interrupting rating specified for this breaker.
• Thermal-magnetic trip operation provides overcurrent protection through thermal and magnetic trip functions.
• Q2 type and Q-frame construction help identify the breaker for compatibility with the appropriate equipment.
• B-C phasing makes this model suitable for installations where that particular phase position is required.
• I-Line plug-on design allows the breaker to connect to compatible I-Line equipment.
• Molded case construction provides a durable enclosure designed for its intended electrical application.
• A practical choice for maintenance and replacement work in legacy electrical systems when the original specifications need to be matched.

Technical Specifications

• Part Number: Q221125BC
  
• Type: Q2
  
• Frame: Q-Frame
  
• Breaker Style: Molded Case Circuit Breaker
  
• Amperage: 125A
  
• Poles: 2
  
• Voltage: 120/240VAC
  
• AIC Rating: 10k
  
• Trip Type: Thermal-Magnetic
  
• Mounting / Connection: I-Line, Plug-On
  
• Phasing: B-C
  
• Height: 7.88 in.
  
• Width: 3.0 in.
  
• Depth: 4.31 in.
  

Material Compliance and Certifications

• Specific certifications, agency listings, and material-compliance information were not provided with the available specifications for the Q221125BC. Rather than assume a certification applies, check the markings on the actual breaker and the documentation for the equipment where it will be installed. Any installation should also meet applicable electrical codes and system requirements.

Where It Works Best

• The Q221125BC is best suited to existing electrical distribution equipment that specifically requires a 125A, 2-pole Q2 Q-frame breaker with B-C phasing and an I-Line plug-on connection. That makes it particularly useful for maintenance and replacement work involving legacy systems where keeping the original breaker configuration is important.