QJA32150 - 150A Circuit Breaker

QJA32150 - 150A Circuit Breaker

The QJA32150 is a 3-pole, 150-amp Type QJA molded case circuit breaker designed to provide dependable overcurrent and short-circuit protection for your commercial and industrial electrical distribution systems. Built with a thermal-magnetic trip unit, this breaker delivers reliable protection against sustained overloads and instantaneous fault conditions, helping you safeguard electrical equipment while minimizing unnecessary downtime. Its Q-Frame, I-Line plug-on design allows for streamlined installation and maintenance in compatible panelboards and switchboards, making it a practical choice for new installations, system upgrades, and replacement applications. With a 100 kA interrupting capacity at 240 VAC, the QJA32150 is well-suited for electrical systems where high-fault-current protection is essential. Its compact footprint and dependable construction make it a trusted solution for demanding power distribution environments where consistent performance and long service life matter.

Key Features and Benefits

• 150 Amp Continuous Current Rating: 150 Amp continuous current rating for medium- to high-capacity electrical distribution systems.
• 3-Pole Configuration: A 3-pole configuration protects three-phase electrical circuits.
• 100 kA Interrupting Rating: A 100 kA interrupting rating at 240 VAC helps protect equipment in applications with high available fault current.
• Thermal Magnetic Trip Mechanism: The thermal magnetic trip mechanism delivers dependable overload and short-circuit protection.
• Q-Frame Construction: Q-Frame construction is designed for durability in demanding commercial and industrial environments.
• I-Line Plug-On Mounting: I-Line plug-on mounting supports quick installation and simplifies breaker replacement in compatible equipment.
• Molded Case Design: Molded case design helps protect internal components from environmental contaminants and mechanical damage.
• Application: Suitable for protecting feeders, distribution panels, and branch circuits in compatible electrical systems.
  

Technical Specifications

• Part Number: QJA32150
  
• Type: QJA
  
• Frame: Q-Frame
  
• Circuit Breaker Style: Molded Case Circuit Breaker
  
• Trip Unit: Thermal Magnetic
  
• Mounting Style: I-Line, Plug-On
  
• Poles: 3
  
• Amperage: 150A
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity (A.I.C.): 100kA @ 240VAC
  
• Dimensions:
  • Height: 7.88 in.
  • Width: 4.50 in.
  • Depth: 4.31 in.

Material Compliance and Certifications

• Molded Case Construction: Molded case construction is designed for long-term performance in commercial and industrial electrical applications.
• Industry Standards: Manufactured to meet applicable industry standards for molded case circuit breakers based on the original product design and ratings.
• Installation Notice: Always verify compatibility, code requirements, and installation practices with your equipment documentation and local electrical regulations before installation.
  

Where It Works Best

• The QJA32150 is an excellent choice for commercial buildings, industrial facilities, manufacturing plants, institutional properties, and other three-phase power distribution systems that require a 150A, 3-pole thermal-magnetic circuit breaker. Its I-Line plug-on configuration makes it particularly well-suited for compatible switchboards and panelboards where efficient installation, reliable overcurrent protection, and high interrupting capacity are critical to maintaining safe and dependable electrical operation.