JXD23B300 - 300Amp Circuit Breaker

JXD23B300 - 300Amp Circuit Breaker

The JXD23B300 has a published case size of 7.50 inches wide, 11.00 inches long, and 4.00 inches deep, giving you a useful physical reference when checking a replacement for equipment already in service. For legacy replacement work, the important point is getting the entire specification set right rather than relying on amperage alone. The JXD23B300 is built to last, with clearly defined electrical, connection, and dimensional characteristics that can be checked against the breaker and equipment already in place.

Key Features and Benefits

• 300A current rating for equipment requiring this specific amperage.
• Three-pole configuration provides a clear identifier when checking an existing installation.
• The JXD2-A designation helps narrow compatibility to equipment that calls for this breaker type.
• Non-interchangeable trip unit matches applications requiring this particular trip arrangement.
• Load-side lugs are included, making the supplied connection setup clear before installation.
• Well suited to form, fit, and functional replacement where the existing equipment calls for the same specifications.
  

Technical Specifications

• Part Number: JXD23B300
  
• Product Type: Molded Case Circuit Breaker
  
• Type: JXD2-A
  
• Amperage: 300A
  
• Number of Poles: 3
  
• Trip Unit: Non-interchangeable
  
• A.I.C. Rating: 65 kA at 240VAC
  
• Additional DC Rating: 30 kA at 250VDC for two-pole applications only
  
• Load-Side Lugs: Included
  
• Line-Side Lugs: Not specified in the supplied product data
  
• Width: 7.50 in.
  
• Height / Length: 11.00 in.
  
• Depth: 4.00 in.
  
• Overall Dimensions: 7.50 in. W × 11.00 in. L × 4.00 in. D
  
• Approximate Ship Weight: 18.00 lb
  

Material Compliance and Certifications

No specific UL, CSA, IEC, RoHS, REACH, or other certification or material compliance information was provided in the available JXD23B300 specifications. These certifications should not be assumed. Where a specific approval or compliance standard is required, confirm compliance with the applicable product documentation before installation.

Where It Works Best

The JXD23B300 is suited to compatible existing and legacy electrical equipment requiring a 300A, three-pole Type JXD2-A molded case circuit breaker with a non-interchangeable trip unit and 65 kA interrupting rating at 240VAC. The included load-side lugs should also be checked against the connection requirements of the existing installation.