JXD63B350 - 350A Circuit Breaker

JXD63B350 - 350A Circuit Breaker

When you're replacing a breaker in equipment that's already in service, 350 amps is only one piece of the puzzle. The JXD63B350 also offers a three-pole configuration, a Type JXD6-A identification, and a non-interchangeable trip unit for comparison with the existing setup. The JXD63B350 is built to last while keeping the job straightforward: confirm the electrical ratings, physical size, trip arrangement, and connection requirements match those of the breaker you're replacing.

Key Features and Benefits

• 350A, three-pole configuration provides clear electrical identifiers for replacement work.
• Type JXD6-A makes it easier to confirm compatibility with equipment requiring this specific breaker type.
• The non-interchangeable trip unit matches installations calling for this trip arrangement.
• Load-side lugs are included, an important detail to verify when matching connection requirements.
• A practical choice for form, fit, and functional replacement in compatible existing and legacy equipment.
  

Technical Specifications

• Part Number: JXD63B350
  
• Product Type: Molded Case Circuit Breaker
  
• Type: JXD6-A
  
• Amperage: 350A
  
• Poles: 3
  
• Trip Unit: Non-interchangeable
  
• A.I.C. Rating at 240VAC: 65 kA
  
• A.I.C. Rating at 480VAC: 35 kA
  
• A.I.C. Rating at 600VAC: 25 kA
  
• Additional DC Rating: 30 kA at 250VDC for two-pole applications only; this is not a three-pole DC rating
  
• Load-Side Lugs: Included
  
• 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: 16.00 lb
  

Material Compliance and Certifications

No specific material-compliance or certification information was included in the supplied specifications for the JXD63B350. UL, CSA, IEC, RoHS, REACH, or other certification and compliance status should not be assumed without additional documentation.

Where It Works Best

The JXD63B350 is a good fit for compatible existing and legacy electrical equipment that specifically calls for a 350A, three-pole Type JXD6-A molded case circuit breaker with a non-interchangeable trip unit. It is particularly useful for replacement work where maintaining the original breaker's electrical ratings, physical footprint, and connection arrangement is important.