JKS-400 - 400 Amp Fuse

JKS-400 - 400 Amp Fuse

A 400-amp fuse leaves little room for casual part selection—the electrical ratings, fuse class, connection style, and physical dimensions must match the equipment. The Eaton Bussmann series JKS-400 is a 400A, 600V Class J fuse with a manufacturer-specified 200 kAIC interrupting rating at 600VAC. When your electrical application calls for these characteristics, the JKS-400 provides clear specifications you can verify before installation. It’s built to last, but selecting the right fuse is simple: make sure the full specification matches the equipment requirements, not just the 400A rating.

Key Features and Benefits

• 400A amperage rating: Clearly specified for compatible electrical equipment requiring a 400-amp fuse.
• 600V voltage rating: Provides a defined voltage specification for application and replacement checks.
• Class J fuse: Identifying the fuse class helps narrow the selection beyond amperage and voltage alone.
• Single element: The manufacturer specifies one element for the JKS-400.
• Non-indicating design: This fuse does not provide a visual blown-fuse indication.

Technical Specifications

• Product Name: Eaton Bussmann series JKS fuse
  
• Catalog Number: JKS-400
  
• Product Type: Fuse
  
• Amperage Rating: 400A
  
• Voltage Rating: 600V
  
• Fuse Class: Class J
  
• Interrupting Rating: 200 kAIC at 600VAC
  
• Number of Elements: 1
  
• Connection: Bolted blade end x bolted blade end
  
• Fuse Indicator: Non-indicating
  
• Special Feature: Non-indicating
  
• Product Length/Depth: 7.13 in
  
• Product Height: 2 in
  
• Product Width: 2 in
  
• Product Weight: 1.85 lb
  
• UPC: 051712634007
  

Material Compliance and Certifications

The supplied manufacturer specifications identify the JKS-400 as RoHS-compliant. This provides documented material-compliance information for applications where RoHS status matters.

Where It Works Best

The JKS-400 400A 600V Class J fuse is best suited for compatible electrical equipment that requires a 400A Class J fuse rated at 600V with a 200 kAIC interrupting rating at 600VAC. Its single-element construction, non-indicating configuration, bolted blade-end connections, and 7.13 x 2 x 2-inch dimensions should also match the equipment and fuse mounting arrangement.