KD3225 - 225 Amp Circuit Breaker

KD3225 - 225 Amp Circuit Breaker

The KD3225 is a 225-amp, three-pole Series C molded case circuit breaker supplied as a complete breaker with a K frame. That combination of specifications is important when you're matching a breaker to existing electrical equipment, because amperage alone doesn't establish compatibility. For electricians, maintenance teams, and facility personnel working with compatible legacy equipment, these details provide specific points for comparison with existing breaker and equipment requirements. When the KD3225 catalog number, Type KD configuration, K frame, T186 trip type, electrical ratings, terminals, and dimensions all correspond with the application, the breaker can provide the required form, fit, and function.

Key Features and Benefits

• 225A, three-pole configuration: Clearly identifies the amperage and pole arrangement for comparison with the existing installation.
• Complete molded case circuit breaker: The KD3225 is specified as a complete breaker rather than a frame-only component.
• K frame: Another key specification to verify when determining form and fit.
• T186 trip type: Helps maintenance personnel confirm the required breaker configuration rather than selecting on amperage alone.
• 600 VAC and 250 VDC ratings: Clearly stated voltage ratings make application verification more straightforward.
• Line and load terminals: Both are specified with aluminum terminal material.
• 50–60Hz frequency rating: Identifies the specified operating-frequency range.
  

Technical Specifications

• Catalog Number: KD3225
  
• Product Type: Molded Case Circuit Breaker
  
• Series: Series C
  
• Circuit Breaker Type: KD
  
• Frame: K
  
• Circuit Breaker Frame Type: Complete Breaker
  
• Amperage Rating: 225A
  
• Number of Poles: 3
  
• Voltage Rating: 600VAC, 250VDC
  
• Trip Type: T186
  
• Interrupt Rating at 480VAC: 35k AIC
  
• Interrupt Rating at 240VAC: 65k AIC
  
• Frequency Rating: 50–60Hz
  
• Terminals: Line and Load
  
• Terminal Material: Aluminum
  
• Product Length/Depth: 4.1 in.
  
• Product Height: 5.5 in.
  
• Product Width: 5.5 in.
  
• Product Weight: 11.5 lbs.
  
• UPC: 786679349151
  
• Certification: UL Listed
  

Material Compliance and Certifications

The KD3225 is UL Listed, according to the supplied product specifications. The breaker is also specified with aluminum terminal material for its line and load connections.

No specific RoHS, REACH, or other material-compliance information was provided in the available specifications, so those designations should not be assumed. If the application requires a particular certification, listing, or material standard, confirm the markings on the breaker and compare them with the applicable equipment and product documentation.

Where It Works Best

The KD3225 225A three-pole molded case circuit breaker is best suited to compatible existing and legacy electrical equipment requiring the corresponding Series C, Type KD, K-frame complete breaker configuration.

For replacement work, begin by confirming the KD3225 catalog number, then review the remaining specifications. The application should call for a 225-amp, three-pole breaker with the specified T186 trip type, 50–60Hz frequency range, and appropriate voltage rating.