Q221150AB - 150 Amp Circuit Breaker

Q221150AB - 150 Amp Circuit Breaker

When your system demands dependable protection and safe power delivery, the Q221150AB 150 Amp circuit breaker steps in. Built to handle heavy loads and frequent switching, this molded-case thermal-magnetic breaker offers assurance that your electrical installations stay safe from overloads and short circuits. It's compact but strong, with plug-on I-Line connectivity and A-B phasing compatibility, so it slides right into many standard control panels. If you're running HVAC systems, large motors, or critical infrastructure, this unit is engineered for continuous duty in commercial and industrial settings.

Key Features and Benefits

• 150 Amp capacity: Supports high current loads, ideal for demanding industrial or large commercial circuits.
• Thermal-magnetic protection: Integrates overload and short-circuit response in one device for versatile safety.
• Plug-on I-Line format: Simplifies installation and enables fast upgrades or replacements.
• A-B phasing compatibility: Gives you flexibility with line arrangements and phasing setups.
• Molded case construction: Resists environmental stresses, vibration, and mechanical wear.
• 10 kA interrupting rating @ 120/240 VAC: Capable of safely interrupting fault currents in many standard power systems.

Technical Specifications

• Poles: 2
  
• Amperage: 150 A
  
• Voltage Rating: 120/240 VAC
  
• Interrupting Capacity (A.I.C.): 10,000 A
  
• Frame Type: Q2 (Q-Frame)
  
• Phasing: A-B
  
• Connection Type: Plug-on I-Line
  

Material Compliance and Certifications

• This circuit breaker is manufactured to meet rigorous industrial safety and performance standards. Its construction withstands thermal cycling and mechanical stress while adhering to prevailing regulatory norms. (Include specific certification numbers or standards your factory adheres to, such as UL, IEC, or ANSI, if applicable.)
  

Where It Works Best

• The Q221150AB is a champion in settings where continuous reliability is non-negotiable. Use it in:
• Manufacturing plants and heavy machinery installations
• Data centers and server houses with high-density power loads
• HVAC and refrigeration systems, especially in large commercial buildings
• Critical infrastructure modules or power distribution racks
• High-load residential or mixed-use buildings where dependable circuit protection is required