Q2M2150MB - 150 Amp Circuit Breaker

Q2M2150MB - 150 Amp Circuit Breaker

If you're replacing a Q2M2150MB circuit breaker, the small details matter just as much as the amp rating. This 150-amp, 2-pole thermal-magnetic breaker is a Type Q2MB unit rated at 10 kA I.C. at 120/240 VAC. It uses a non-interchangeable trip unit and has 1/4-20" studs on the line side with lug terminals on the load side. Those connection points are worth checking carefully against the breaker you're replacing, especially in older electrical equipment where the correct form and fit are important. The Q2M2150MB measures 6.5" high, 3.0" wide, and 3.13" deep. It's built to last and is intended for compatible electrical distribution equipment that calls for these specific ratings and physical characteristics. Before installation, compare the part number, breaker type, dimensions, terminal arrangement, voltage, amperage, and interrupting rating with your equipment's requirements.

Key Features and Benefits

• 150-amp, 2-pole configuration for equipment designed around these ratings.
• Thermal-magnetic protection with a non-interchangeable trip unit.
• Rated 10 kA.I.C. at 120/240VAC.
• 1/4-20" studs on the line side provide a specific connection style that can be checked against the existing installation.
• Lug terminals on the load side for the required load connection.
• Type Q2MB construction for compatible equipment requiring this breaker style.
• Clearly defined dimensions make it easier to check physical fit before installation.
• Built to last when properly installed and operated within its specified ratings.

Technical Specifications

• Part Number: Q2M2150MB
  
• Type: Q2MB
  
• Breaker Type: Thermal Magnetic
  
• Trip Unit: Non-Interchangeable
  
• Amperage: 150A
  
• Poles: 2
  
• Voltage Rating: 120/240VAC
  
• A.I.C. Rating: 10k
  
• Dimensions:
  • Height: 6.5 in.
  • Width: 3.0 in.
  • Depth: 3.13 in.
• Line-Side Terminals: 1/4-20" Studs
  
• Load-Side Terminals: Lug Terminals
  

Material Compliance and Certifications

• Specific material compliance information and certification or agency listing details were not included in the available specifications for this breaker. If your application requires a particular certification, listing, or material standard, confirm those requirements against the breaker documentation and the equipment in which it will be installed.

Where It Works Best

• The Q2M2150MB is best suited for maintenance and replacement work on compatible legacy electrical equipment that requires a Type Q2MB breaker rated 150A, two-pole, and 120/240VAC operation.