JKS-300 - 300 Amp Fuse

JKS-300 - 300 Amp Fuse

At 300 amps, there’s little room for ambiguity when you’re checking a fuse against an existing electrical application. The Eaton Bussmann series JKS-300 gives you a specific set of electrical and physical characteristics to verify: a 300A rating, 600V rating, Class J configuration, and 200 kAIC interrupting rating at 600VAC. The manufacturer also identifies it as RoHS Compliant. Together, these details create a clearly documented fuse that is built to last and easy to match to equipment specifications—without relying on guesswork, appearance, or amperage alone.

Key Features and Benefits

• 300A amperage rating: Specifically rated at 300 amps for compatible equipment requiring this exact fuse rating.
• 600V Class J fuse: Combines a 600V rating with the defined physical and electrical characteristics of a Class J fuse.
• Bolted blade connections: The bolted blade-to-bolted blade configuration provides a clearly defined connection style for form-and-fit verification.
• Single-element construction: Manufacturer specifications identify the JKS-300 as a single-element fuse.
• Non-indicating design: This model does not incorporate a fuse-status indicator.

Technical Specifications

• Product Name: Eaton Bussmann series JKS fuse
  
• Catalog Number: JKS-300
  
• Product Type: Fuse
  
• Amperage Rating: 300A
  
• 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
  
• Product Height: 7.13 in
  
• Product Width: 2 in
  
• Product Length/Depth: 2 in
  
• Product Weight: 1.85 lb
  
• UPC: 051712633000
  
• EAN: 5027590445115
  

Material Compliance and Certifications

The manufacturer information supplied for the Eaton Bussmann JKS-300 identifies this model as RoHS Compliant.

Where It Works Best

The JKS-300 300A 600V Class J fuse is best suited to compatible existing electrical equipment that specifically requires its combination of 300A amperage, 600V rating, Class J configuration, and 200 kAIC interrupting rating at 600VAC. The application should also accommodate the single-element, non-indicating design, bolted blade-end x bolted blade-end connections, and the stated 7.13 x 2 x 2-inch physical dimensions.