JXD63H400 - 400Amp Motor Circuit Protector

JXD63H400 - 400Amp Motor Circuit Protector

The JXD63H400 has a very specific job, and that makes the details especially important when you're matching it to equipment already in service. This 400A, three-pole motor circuit protector uses a magnetic-trip-only configuration with an instantaneous trip range of 2,000A to 4,000A. The JXD63H400 is built to last, while the real consideration for replacement work remains correct form, fit, and function. Before installation, confirm the 400A rating, three-pole arrangement, 600VAC specification, magnetic-only trip characteristics, instantaneous trip range, JXD6(A) type, and physical dimensions against the requirements of the existing system.

Key Features and Benefits

• 400A, three-pole configuration provides clear electrical identifiers for compatibility checks.
• Classified as a Motor Circuit Protector (MCP).
• The magnetic trip-only configuration should be carefully matched to the protection requirements of the existing motor circuit.
• The 600 VAC specification helps identify the intended electrical configuration.
• Type JXD6(A) provides another key detail to verify when sourcing a form, fit, and function replacement.
  

Technical Specifications

• Part Number: JXD63H400
  
• Product Category: Motor Circuit Protector
  
• Type: JXD6(A)
  
• Amperage: 400A
  
• Number of Poles: 3
  
• Voltage Specification: 600VAC
  
• Trip Type: Magnetic Trip Only
  
• Instantaneous Trip Range: 2,000A–4,000A
  
• 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 JXD63H400. UL, CSA, IEC, RoHS, REACH, or other certification and compliance statuses should therefore not be assumed. Where a particular standard or certification is required, verify it against the applicable product documentation before installation.

Where It Works Best

The JXD63H400 motor circuit protector is best suited to compatible existing and legacy motor-circuit equipment that calls for a 400A, three-pole JXD6(A) device with magnetic-only tripping at 600VAC. Its published 2,000A–4,000A instantaneous trip range is particularly important when confirming that the device matches the intended protection scheme.

For replacement work, check the complete specification rather than relying on amperage alone. The JXD6(A) type, three-pole configuration, voltage, magnetic-trip characteristics, instantaneous-trip range, and physical dimensions should all agree with the system requirements before installation. This keeps the selection focused on what matters most with legacy electrical equipment: correct compatibility, form, fit, and function.