MA3125 - 125 Amp Circuit Breaker

MA3125 - 125 Amp Circuit Breaker

The MA3125 is a 125 amp, 3-pole MA thermal magnetic circuit breaker with an interchangeable trip unit and a 40°C rating. For anyone replacing a breaker in existing or legacy electrical equipment, the important details are easy to identify: amperage, pole count, breaker type, interrupting ratings, physical dimensions, trip configuration, and terminal arrangement. When your application calls for a 125A, three-pole MA breaker with matching electrical and physical requirements, the MA3125 can be evaluated as a form-, fit-, and function-replacement candidate. Its solid-circuit-breaker construction is built to last for its intended electrical application when selected, installed, and maintained correctly.

Key Features and Benefits

• 125 Amp Rating: Provides a clear amperage rating to match the breaker to compatible electrical equipment.
• 3-Pole Configuration: Intended for applications requiring a three-pole breaker arrangement.
• MA Type: The MA designation is an important compatibility point when identifying a replacement for existing equipment.
• Thermal-Magnetic Circuit Breaker: Uses the specified thermal-magnetic trip configuration.
• Interchangeable Trip Unit: The breaker includes an interchangeable trip unit, an important detail when matching the existing breaker configuration.
• 40°C Rated: Clearly identified with a 40°C rating for application and replacement checks.
• Load-Side Terminals Included: Load-side terminals are included.

Technical Specifications

• Part Number: MA3125
  
• Type: MA
  
• Product Type: Thermal Magnetic Circuit Breaker
  
• Amperes: 125A
  
• Poles: 3
  
• Temperature Rating: 40°C
  
• Trip Unit: Interchangeable
  
• A.I.C. Rating & Volts: 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  
• Terminals: Load-side terminals included
  
• Height: 16.0 in.
  
• Width: 8.25 in.
  
• Depth: 4.0 in.
  
• Dimensions: 8.25"W x 16.00"L x 4.00"D
  
• Approximate Shipping Weight: 50.00 lbs.
  

Material Compliance and Certifications

Specific material-compliance information and certifications were not provided in the available specifications for the MA3125. Therefore, do not assume UL, IEC, RoHS, REACH, or other certification and compliance status.

Where a particular listing, certification, or material standard is required, verify that information using the breaker nameplate and applicable manufacturer documentation before installation.

Where It Works Best

The MA3125 125A 3-pole circuit breaker is best suited for compatible existing or legacy electrical equipment that requires an MA-type, 40°C-rated thermal magnetic breaker with an interchangeable trip unit. It is particularly relevant for replacement situations where the goal is to retain the required electrical ratings, physical fit, and breaker configuration rather than change the system design.