MD125V - 125Amp Circuit Breaker

MD125V - 125Amp Circuit Breaker

When you're matching a residential main breaker for replacement, small configuration details can matter as much as the amperage on the label. The MD125V is a 125-amp, 2-pole Type MDV thermal magnetic circuit breaker with a plug-in configuration, rated 10k A.I.C. at 120/240VAC. A key feature of this model is its staggered lug arrangement: the wire enters the lug terminals parallel to the handle action. Check that detail against the existing breaker and equipment, because terminal orientation helps determine proper form and fit. Measuring 2.00"W x 7.06"L x 3.25"D, the MD125V provides a defined physical footprint that can be compared directly with the breaker being replaced.

Key Features and Benefits

• 125 Amp, 2-Pole Configuration: Clearly defined electrical characteristics help narrow replacement selection to equipment requiring this specific amperage and pole count.
• Thermal Magnetic Operation: The MD125V uses a thermal-magnetic circuit breaker configuration, as specified for this model.
• Plug-In Design: Its plug-in configuration is an important fit characteristic when matching the breaker with compatible residential equipment.
• Main Residential Application: Identified specifically as a main residential circuit breaker.
• Staggered Lugs: The breaker uses staggered lugs rather than a generic terminal arrangement.
• Parallel Wire Entry: Conductors enter the lug terminals parallel to the handle action, a detail worth checking carefully when selecting a replacement.

Technical Specifications

• Part Number: MD125V
  
• Product Type: Thermal Magnetic Circuit Breaker
  
• Application: Main Residential
  
• Type: MDV
  
• Configuration: Plug-In
  
• Amperes: 125A
  
• Poles: 2
  
• Voltage Rating: 120/240VAC
  
• A.I.C. Rating: 10k @ 120/240VAC
  
• Trip Type: Thermal Magnetic
  
• Lug Configuration: Staggered Lugs
  
• Wire Entry Orientation: Parallel to the action of the handle
  
• Height: 7.06 in.
  
• Width: 2.0 in.
  
• Depth: 3.25 in.
  
• Dimensions: 2.00"W x 7.06"L x 3.25"D
  
• Approx. Shipping Weight: 4.50 lbs.
  

Material Compliance and Certifications

The available specifications confirm that the MD125V has staggered lugs and that conductors enter the lug terminals parallel to the handle action.

This part also did not include specific UL, IEC, RoHS, REACH, or other certification and material-compliance information. Where an installation requires a particular listing, certification, or material standard, verify that requirement against appropriate product documentation.

Where It Works Best

The MD125V is best considered for compatible residential equipment that calls for a 125A, 2-pole Type MDV main circuit breaker with plug-in installation, thermal magnetic operation, a 120/240VAC rating, and a 10k A.I.C. rating. Match these specifications individually rather than relying on the amperage or part family alone.

Pay close attention to the staggered lug configuration and wire-entry direction. On the MD125V, the wire enters the lug terminals parallel to the handle action. This is a key form-and-fit characteristic and should match the equipment being serviced.