HJXD63B350 - 350Amp Circuit Breaker

HJXD63B350 - 350Amp Circuit Breaker

The HJXD63B350 molded case circuit breaker is a 3-pole, 350-amp electrical protection device designed for use in compatible HJXD6 electrical systems. It is commonly used in replacement and maintenance applications where maintaining your existing electrical system configuration is important. Featuring space for an interchangeable trip unit and included load-side lugs, this circuit breaker is designed to support established commercial and industrial power distribution equipment. The HJXD63B350 provides a practical solution for facilities that need a properly matched breaker to maintain existing panels, switchgear, and electrical assemblies without unnecessary system changes. Its molded case construction is designed for long-term use in properly maintained electrical installations.

Key Features and Benefits

• 350 Amp Rating: Fits electrical systems that require a 350-amp molded case circuit breaker.
• 3-Pole Configuration: Supports compatible three-phase electrical applications requiring coordinated circuit protection.
• HJXD6 Compatibility: Designed for equipment that specifies HJXD6-type circuit breakers for proper form, fit, and function.
• Interchangeable Trip Unit Space: Provides room for compatible interchangeable trip unit configurations.
• Load-Side Lugs Included: Includes load-side connection points for compatible electrical equipment applications.
• Replacement-Focused Design: Helps maintain existing electrical systems where matching specifications and equipment compatibility are important.

Technical Specifications

• Part Number: HJXD63B350
  
• Type: HJXD6
  
• Style: Molded Case Circuit Breaker (MCCB)
  
• Amperes: 350 A
  
• Poles: 3
  
• Approximate Shipping Weight: 18.00 lbs.
  
• Dimensions: 7.5"W x 11.00"L x 4.00"D
  
• Height: 11.00 in.
  
• Width: 7.5 in.
  
• Depth: 4.0 in.
  
• A.I.C. Ratings:
  • 35kA @ 600VAC
  • 65kA @ 480VAC
  • 100kA @ 240VAC
• Additional Rating: 30kAIC @ 250VDC (2-pole applications)
  
• Trip Unit: Space provided for interchangeable trip unit
  
• Connections: Load-side lugs included
  

Material Compliance and Certifications

The HJXD63B350 circuit breaker should be installed in accordance with the requirements of the electrical equipment it is used with, as well as all applicable electrical codes and standards. Voltage ratings, interrupt ratings, and system compatibility should be verified before installation. Certification and compliance details should be confirmed through product markings and available manufacturer documentation.

Where It Works Best

The HJXD63B350 is well suited for commercial buildings, industrial facilities, and electrical maintenance environments where HJXD6-compatible equipment is already installed. It works best in applications where replacing an existing molded case circuit breaker while preserving the current system design is important.