Q2L3125 - 125 Amp Circuit Breaker

Q2L3125 - 125 Amp Circuit Breaker

If you’re replacing a Q2L3125 circuit breaker, the details matter. This is a 125-amp, 3-pole thermal-magnetic breaker with a 10 kAIC rating at 240 VAC. It uses a non-interchangeable trip unit and has lug terminals on both the line and load sides, which is an important point to check against the breaker already in your equipment. The Q2L3125 measures 6.5 inches high, 4.5 inches wide, and 3.13 inches deep. It’s a practical fit for existing electrical systems designed around the Q2L configuration and these specific ratings. When maintaining older equipment, matching the original breaker’s physical size, pole count, amperage, voltage, interrupting rating, and connection style can save a lot of headaches. The Q2L3125 is built to last and is intended for applications where its form, fit, and electrical specifications match the existing system.

Key Features and Benefits

• 125-amp rating for equipment designed around this amperage.
• Three-pole design for compatible three-phase applications.
• Thermal-magnetic trip operation provides overcurrent protection.
• Rated 10 kAIC at 240VAC.
• The non-interchangeable trip unit is suited to applications that call for this configuration.
• Lug terminals on both the line and load sides provide the connection arrangement required by certain existing installations.
• Q2L configuration makes it suitable for equipment specifically designed to accept this breaker type.
• Clearly defined dimensions make it easier to check physical fit before installation.
• Built to last when correctly applied and maintained within its specified ratings.

Technical Specifications

• Part Number: Q2L3125
  
• Type: Q2L
  
• Breaker Type: Thermal Magnetic
  
• Amperage: 125A
  
• Poles: 3
  
• Voltage: 240VAC
  
• AIC Rating: 10k
  
• Trip Unit: Non-Interchangeable
  
• Line Side: Lug Terminals
  
• Load Side: Lug Terminals
  
• Dimensions:
  • Height: 6.5 in.
  • Width: 4.5 in.
  • Depth: 3.13 in.

Material Compliance and Certifications

• Specific material-compliance information and certification listings are not provided in the available specifications for the Q2L3125, so we don’t want to make assumptions about them. If your job requires a particular listing, certification, or material standard, check the markings on the breaker and the documentation for the equipment to be installed.

Where It Works Best

• The Q2L3125 makes the most sense for existing or legacy electrical equipment that already calls for a Q2L 125-amp, 3-pole breaker with a 10k AIC rating at 240VAC. It’s especially useful when you need to match an existing breaker rather than change the electrical system around it.