KC34125 - 125 Amp Circuit Breaker

KC34125 - 125 Amp Circuit Breaker

If you're looking for a KC34125 circuit breaker, chances are you need a fairly specific match for an existing panelboard. The KC34125 is a 125-amp, 3-pole Type KC molded-case circuit breaker designed for compatible I-Line panelboards, with thermal-magnetic operation, a 60Hz frequency rating, and a 40°C rating. For maintenance or replacement work on legacy electrical equipment, compare the KC34125 part number, Type KC configuration, pole count, electrical ratings, dimensions, and panelboard requirements with those of the breaker already in service. When those details line up, the KC34125 can provide the required form, fit, and function for the application.

Key Features and Benefits

• 125-amp rating: Intended for applications specifically requiring a 125A breaker.
• 3-pole configuration: Matches compatible three-pole electrical applications.
• Thermal-magnetic operation: Provides the trip configuration specified for this breaker.
• Type KC molded-case circuit breaker: The type designation helps identify the correct breaker when working with existing equipment.
• For I-Line panelboards: Designed for compatible panelboard applications requiring this breaker configuration.
• 60Hz, 40°C ratings: Important specifications to confirm against the requirements of the existing electrical system.
  

Technical Specifications

• Part Number: KC34125
  
• Type: KC
  
• Product Type: Molded Case Circuit Breaker
  
• Trip Type: Thermal Magnetic
  
• Amperage: 125A
  
• Poles: 3
  
• AIC at 480VAC: 65k
  
• AIC at 240VAC: 100k
  
• Frequency: 60Hz
  
• Temperature Rating: 40°C
  
• Application: I-Line Panelboards
  
• Width: 4.50 in.
  
• Height/Length: 10.50 in.
  
• Depth: 4.38 in.
  
• Dimensions: 4.50"W x 10.50"L x 4.38"D
  
• Approximate Shipping Weight: 12.00 lbs.
  

Material Compliance and Certifications

Certification and material-compliance information was not included in the available specifications for the KC34125. For that reason, UL, CSA, RoHS, REACH, or other certification and compliance designations should not be assumed.

Where It Works Best

The KC34125 makes the most sense when you're maintaining a compatible I-Line panelboard or legacy electrical system that already calls for this specific Type KC configuration. This isn't a part that should be chosen simply because another breaker has the same 125-amp rating.

Start with the KC34125 part number and Type KC designation. Then work through the details that determine whether it belongs in the application: 125A amperage, three poles, thermal-magnetic operation, 65k AIC at 480VAC, 100k AIC at 240VAC, 60Hz frequency, 40°C rating, and the 4.50" W x 10.50"L x 4.38"D footprint. The panelboard requirements should also be confirmed.