JXD63B350L - 350A Circuit Breaker

JXD63B350L - 350A Circuit Breaker

Need to match a 350A breaker to equipment that's already in service? The JXD63B350L gives you several concrete details to work with. This is a three-pole, Type JXD6-A molded-case circuit breaker with a non-interchangeable trip unit and both line-side and load-side lugs. The JXD63B350L is built to last, while the real priority for an existing or legacy installation remains correct form, fit, and function. Check the amperage, poles, JXD6-A type, trip arrangement, A.I.C. rating, lug setup, and physical dimensions against your equipment requirements before installation.

Key Features and Benefits

• 350A, three-pole configuration for equipment requiring these specific electrical characteristics.
• Type JXD6-A provides an important identifier when checking compatibility with an existing installation.
• Uses a non-interchangeable trip unit, an important detail to confirm when replacing an existing breaker.
• Line-side and load-side lugs are included, making the supplied connection arrangement clear before installation.
• A practical choice for compatible existing and legacy systems calling for the JXD63B350L or matching JXD6-A specifications.
• Supports form, fit, and functional replacement without relying on unnecessary performance claims.
  

Technical Specifications

• Part Number: JXD63B350L
  
• Product Type: Molded Case Circuit Breaker
  
• Type: JXD6-A
  
• Amperage: 350A
  
• Poles: 3
  
• Trip Unit: Non-interchangeable
  
• A.I.C. at 240VAC: 65 kA
  
• A.I.C. at 480VAC: 35 kA
  
• A.I.C. at 600VAC: 25 kA
  
• Additional DC Rating: 30 kA at 250VDC for two-pole applications only; this is not a three-pole DC rating
  
• Line-Side Lugs: Included
  
• 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 provided for the JXD63B350L. UL, CSA, IEC, RoHS, REACH, or other certification status should not be assumed from the available specifications. If your installation requires a particular certification or standard, verify that requirement against the applicable product documentation before installation.

Where It Works Best

The JXD63B350L is best suited to compatible existing and legacy electrical equipment that calls for a 350A, three-pole Type JXD6-A molded case circuit breaker with a non-interchangeable trip unit. The included line- and load-side lugs are another important compatibility point, especially when you're trying to reproduce the existing connection arrangement.

Rather than choosing a replacement based on amperage alone, compare the complete specifications. Confirm the JXD6-A type, 350A rating, three-pole configuration, voltage-specific interrupting capacity, trip-unit arrangement, lug configuration, and case dimensions. Those details provide a much better basis for determining whether the JXD63B350L is suitable for the intended application.