QJA32125 - 125A Circuit Breaker

QJA32125 - 125A Circuit Breaker

The QJA32125 is a 125 Amp, 3-pole molded case circuit breaker built for dependable protection in commercial and industrial electrical systems. If you're replacing an existing breaker or maintaining compatible I-Line equipment, this model offers the combination of performance and protection needed for demanding applications. A thermal magnetic trip unit protects against both overloads and short circuits, helping reduce the risk of damage to connected equipment. With a 100kA interrupting rating at 240VAC, the QJA32125 is well suited for systems where higher available fault current requires a breaker capable of interrupting severe fault conditions safely. Its Q-Frame construction and I-Line plug-on mounting make it a practical choice for compatible panelboards and switchboards. Once installed, it provides reliable overcurrent protection for feeders, branch circuits, and other parts of the electrical distribution system without adding unnecessary complexity. Whether it's being used during routine maintenance, a panel upgrade, or a replacement project, the QJA32125 is a dependable solution that helps keep electrical systems protected and operating as intended.

Key Features and Benefits

• 125 Amp current rating.
• 3-pole configuration for three-phase electrical systems.
• Thermal magnetic trip unit responds to overloads and short circuits.
• 100kA interrupting capacity at 240VAC.
• Q-Frame molded case construction.
• I-Line plug-on mounting for compatible equipment.
• Helps protect feeders, branch circuits, and connected electrical equipment.
• Suitable for commercial and industrial applications.
  

Technical Specifications

• Part Number: QJA32125
  
• Type: QJA
  
• Frame: Q-Frame
  
• Circuit Breaker Type: Thermal Magnetic Molded Case Circuit Breaker
  
• Mounting: I-Line, Plug-On
  
• Poles: 3
  
• Current Rating: 125 Amps
  
• Interrupting Rating: 100kA @ 240VAC
  
• Dimensions:
  • Height: 7.88 in.
  • Width: 4.50 in.
  • Depth: 4.31 in.

Material Compliance and Certifications

• The QJA32125 is a molded case circuit breaker manufactured for use in compatible electrical distribution equipment. Compliance and certifications may vary by production date and original manufacturing specifications. Always confirm product requirements before installation in applications with specific regulatory or project requirements.
  

Where It Works Best

• The QJA32125 is commonly used in commercial buildings, industrial facilities, manufacturing plants, schools, healthcare facilities, and other locations that rely on three-phase power distribution. It works well in compatible I-Line panelboards and switchboards protecting feeders, branch circuits, and distribution equipment where dependable overcurrent protection is required.