QBA221501 - 150 Amp Circuit Breaker

QBA221501 - 150 Amp Circuit Breaker

The QBA221501 circuit breaker is a 2-pole, 150 amp molded case circuit breaker designed for dependable overcurrent protection in commercial and industrial electrical distribution systems. Built on the PowerPact Q-Frame platform, this breaker features a thermal magnetic trip mechanism and a 10kA interrupting rating at 240VAC. Its I-Line, plug-on configuration supports straightforward installation in compatible panelboards and switchboards. Designed to meet original form, fit, and function requirements, the QBA221501 is well suited for maintaining or servicing existing electrical systems that rely on Q-Frame components. Built to last, this breaker provides consistent circuit protection while supporting code-compliant operation in appropriately rated applications.

Key Features and Benefits

• 150 Amp Rating – Designed to protect branch and feeder circuits requiring 150A capacity.
• 2-Pole Configuration – Provides protection for two-phase (A-B phase) applications.
• 10kA @ 240VAC Interrupting Rating – Suitable for systems with available fault currents up to 10,000 amperes at 240 volts AC.
• Thermal Magnetic Trip Unit – Combines inverse-time thermal overload protection with instantaneous magnetic short-circuit protection.
• PowerPact Q-Frame Design – Engineered for compatibility within Q-Frame panelboards and switchgear.
• I-Line, Plug-On Mounting – Supports proper installation in I-Line distribution equipment.
• Molded Case Construction – Provides enclosed protection and structural durability for demanding environments.

Technical Specifications

• Part Number: QBA221501
  
• Manufacturer Series: PowerPact Q-Frame
  
• Breaker Type: Molded Case Circuit Breaker
  
• Trip Type: Thermal Magnetic
  
• Poles: 2
  
• Amperage Rating: 150 Amps
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity (A.I.C.): 10kA @ 240VAC
  
• Mounting Style: I-Line, Plug-On
  
• Phase Configuration: A-B Phase
  
• Frame Type: QBA
  
• Approximate Height: 7.88 inches
  
• Approximate Weight: 3.0 lbs
  
• Ship Weight: 3.0 lbs
  

Material Compliance and Certifications

• Industry Standards: The QBA221501 circuit breaker is manufactured to meet applicable industry standards for molded case circuit breakers and is designed for installation in systems compliant with NEC requirements when properly applied.
• Safety and Performance Standards: As part of the PowerPact Q-Frame series, it is built in accordance with recognized electrical safety and performance standards for circuit protection equipment.
  

Where It Works Best

• Commercial buildings with I-Line distribution systems
• Industrial facilities requiring feeder or branch circuit protection
• Electrical panelboards and switchboards utilizing PowerPact Q-Frame breakers
• Maintenance or replacement projects where matching existing specifications is essential