Q2M2150 - 150 Amp Circuit Breaker

Q2M2150 - 150 Amp Circuit Breaker

When you're replacing a breaker in an existing electrical system, the little details can make all the difference. The Q2M2150 is a 150-amp, 2-pole thermal-magnetic circuit breaker with a 10k AIC rating at 120/240VAC. It is a Type Q2M breaker with a non-interchangeable trip unit and 1/4-20" studs on both the line and load sides. Those stud connections, along with the breaker's 6.5" x 3.0" x 3.13" dimensions, are worth checking carefully when matching it to existing equipment. The thermal-magnetic design responds to both sustained overloads and short-circuit conditions, while the 2-pole configuration suits systems designed around this particular Q2M setup. For maintenance or replacement work on compatible legacy equipment, the Q2M2150 offers the form, fit, and electrical characteristics needed to match the original application. It's a straightforward breaker built to last when it's properly selected, installed, and maintained.

Key Features and Benefits

• 150-amp, 2-pole configuration for electrical equipment designed around these ratings.
• Thermal-magnetic trip operation provides response to sustained overload and short-circuit conditions.
• Rated 10 kAIC at 120/240VAC.
• Non-interchangeable trip unit is part of the Q2M2150 configuration.
• 1/4-20" studs on the line and load sides provide a specific connection arrangement that can be checked against the existing breaker.
• Measures 6.5" high, 3.0" wide, and 3.13" deep, making it easier to confirm the required physical fit before installation.
• Well suited to form, fit, and functional replacement applications where the original equipment calls for the same breaker specifications.
• Built to last when correctly applied and maintained within its specified ratings.

Technical Specifications

• Part Number: Q2M2150
  
• Type: Q2M
  
• Amperage: 150A
  
• Poles: 2
  
• Voltage Rating: 120/240VAC
  
• A.I.C. Rating: 10kA at 120/240VAC
  
• Trip Type: Thermal-Magnetic
  
• Trip Unit: Non-Interchangeable
  
• Line-Side Connection: 1/4-20" Studs
  
• Load-Side Connection: 1/4-20" Studs
  
• Dimensions:
  • Height: 6.5"
  • Width: 3.0"
  • Depth: 3.13"

Material Compliance and Certifications

• Certification and material-compliance details are not included in the available specifications for the Q2M2150. That means UL, CSA, RoHS, or other certifications should not be assumed based on the part number or breaker type.
• If your application requires a particular certification, listing, or material declaration, check the markings and documentation for the specific breaker before installation. This is especially important when the breaker will be used in equipment or facilities with defined compliance requirements.

Where It Works Best

• The Q2M2150 circuit breaker makes the most sense in maintenance and replacement work involving compatible legacy electrical equipment. In particular, it's intended for applications that call for a 150A, 2-pole Type Q2M thermal-magnetic breaker rated 10k AIC at 120/240VAC.