Q2M2125MB - 125 Amp Circuit Breaker

Q2M2125MB - 125 Amp Circuit Breaker

When you're replacing a breaker in existing equipment, the small details matter. The Q2M2125MB is a 125-amp, 2-pole thermal-magnetic circuit breaker with a 10k AIC rating at 120/240VAC. It's a Q2MB-type breaker and uses a non-interchangeable trip unit. On the connection side, you'll find 1/4-20" studs on the line side and lug terminals on the load side. The breaker measures 6.5" high, 3.0" wide, and 3.13" deep. Those dimensions, along with the terminal arrangement and electrical ratings, are worth checking carefully when you're matching a breaker to legacy equipment. For applications that call for these specifications, the Q2M2125MB provides the form, fit, and function needed to keep compatible electrical equipment in service. It's a straightforward, built-to-last component for maintenance and replacement work where the original breaker configuration needs to be preserved.

Key Features and Benefits

• 125-amp, 2-pole design for applications that require this configuration.
• Thermal-magnetic operation provides overcurrent protection within the breaker's stated ratings.
• Rated 10 kAIC at 120/240VAC.
• Non-interchangeable trip unit maintains the breaker's specified trip configuration.
• 1/4-20" studs on the line side and lug terminals on the load side.
• Clearly defined dimensions make it easier to check physical fit before installation.
• A practical option for compatible legacy electrical equipment where the Q2MB type and corresponding specifications are required.

Technical Specifications

• Part Number: Q2M2125MB
  
• Type: Q2MB
  
• Breaker Type: Thermal Magnetic
  
• Trip Unit: Non-Interchangeable
  
• Poles: 2
  
• Amperage: 125A
  
• Voltage: 120/240VAC
  
• A.I.C. Rating: 10k @ 120/240VAC
  
• Dimensions:
  • Height: 6.5 in.
  • Width: 3.0 in.
  • Depth: 3.13 in.
• Line Side: 1/4-20" Studs
  
• Load Side: Lug Terminals
  

Material Compliance and Certifications

• Specific certification, listing, and material compliance information was not provided with the available specifications for the Q2M2125MB. If your application requires a particular certification or compliance standard, check the markings on the breaker and the applicable equipment documentation before installation. This avoids making assumptions about approvals that haven't been verified.

Where It Works Best

• The Q2M2125MB circuit breaker is best suited to maintenance and replacement work in compatible legacy electrical systems. It's particularly useful when the existing application calls for a 125A, 2-pole Q2MB thermal-magnetic breaker rated at 10k AIC at 120/240VAC.