Q221150BC - 150 Amp Circuit Breaker

Q221150BC - 150 Amp Circuit Breaker

Need a Q221150BC circuit breaker for an existing I-Line setup? This 150-amp, 2-pole Q2 breaker is made for compatible applications requiring B-C phasing, Q-frame construction, and an I-Line plug-on connection. It carries a 10k AIC rating at 120/240VAC and uses a thermal-magnetic trip mechanism for overcurrent and short-circuit protection. The breaker measures 7.88 inches high, 3.0 inches wide, and 4.31 inches deep. Those dimensions, along with the phasing and connection style, are worth checking carefully when you're trying to match a breaker already installed in older electrical equipment. Simply finding another 150A breaker isn't enough. For proper form, fit, and function as a replacement, the Q221150BC part number, Q2 type, Q-frame, B-C phasing, voltage, interrupting rating, pole count, and plug-on configuration should match the equipment requirements. Its molded case construction is built to last when the breaker is correctly installed and operated within its specified ratings.

Key Features and Benefits

• 150A, 2-pole breaker for compatible 120/240VAC applications.
• 10k AIC rating at 120/240VAC.
• Thermal-magnetic trip design provides overcurrent and short-circuit protection within the breaker's rated application.
• B-C phasing for equipment specifically requiring this phase configuration.
• Q2 type and Q-frame construction help provide the required form and fit in compatible equipment.
• I-Line plug-on design allows installation in the appropriate I-Line configuration.
• Molded case construction provides a durable enclosure built to last under proper operating conditions.
• Well suited to form, fit, and functional replacement where maintaining an existing electrical system is the priority.

Technical Specifications

• Part Number: Q221150BC
  
• Type: Q2
  
• Frame: Q-Frame
  
• Amperage: 150A
  
• Poles: 2
  
• Voltage: 120/240VAC
  
• A.I.C. Rating: 10k
  
• Phasing: B-C
  
• Connection: I-Line, Plug-On
  
• Trip Type: Thermal Magnetic
  
• Breaker Type: Molded Case Circuit Breaker
  
• Height: 7.88 in.
  
• Width: 3.0 in.
  
• Depth: 4.31 in.
  

Material Compliance and Certifications

• Specific certification and material-compliance information was not provided for this Q221150BC. For that reason, UL, CSA, RoHS, or other certifications should not be assumed based on the part number alone. If a particular listing or material requirement is relevant to the job, check the markings on the breaker and the documentation for the equipment where it will be installed.
• As with any circuit breaker replacement, installation should follow the breaker's nameplate ratings, the requirements of the associated equipment, and applicable electrical codes.

Where It Works Best

• The Q221150BC makes the most sense in existing electrical distribution equipment that specifically calls for this breaker configuration. Typical replacement considerations include its 150-amp rating, two-pole, B-C phasing, Q2 type, Q-frame design, 120/240 VAC rating, 10 kAIC rating, and I-Line plug-on connection.
• When you're working on legacy equipment, the small details matter. Two breakers can share the same amperage and still have different mounting arrangements, phasing, dimensions, or electrical ratings. That's why it's a good idea to compare the Q221150BC directly with the breaker being replaced and with the requirements of the existing equipment.