JFL300 - 300Amp Fuse

JFL300 - 300Amp Fuse

At 300 amps, the details matter—and they should be easy to find before anyone decides whether a fuse fits the application. The JFL300 is an Eaton Edison series JFL Class J fuse rated at 300 amps and 600 volts, with a 200 kAIC interrupting rating and a non-indicating design. The JFL300 is built to last and carries manufacturer-documented UL Listed, CSA Certified, and CE Marked status. If you're replacing or identifying a 300A Class J fuse, checking the catalog number alongside the amperage, voltage, interrupting rating, fuse class, and dimensions provides a much better basis for determining suitability than appearance alone.

Key Features and Benefits

• 300A current rating: Clearly defined for equipment requiring a 300-amp Class J fuse.
• 600V voltage rating: Makes it easier to compare the fuse directly with the application's electrical requirements.
• Class J fuse: Clearly identifies the fuse class required when checking equipment compatibility.
• Non-indicating configuration: Designed for applications where a non-indicating fuse is specified.

Technical Specifications

• Catalog Number: JFL300
  
• Product Name: Eaton Edison Series JFL Fuse
  
• Product Type: Fuse
  
• Fuse Class: Class J
  
• Amperage Rating: 300A
  
• Voltage Rating: 600V
  
• Interrupting Rating: 200 kAIC
  
• Fuse Indicator: Non-Indicating
  
• Special Feature: Non-Indicating
  
• Length/Depth: 7.13 in.
  
• Height: 2 in.
  
• Width: 2 in.
  
• Product Weight: 0.001 lb
  
• UPC: 782634809043
  

Material Compliance and Certifications

The supplied manufacturer specifications document the following certifications and compliance designations for the JFL300 300A Class J fuse:

• UL Listed
• CSA Certified
• CE Marked

Where It Works Best

The JFL300 300A 600V Class J fuse is best suited to compatible electrical equipment that specifically calls for its combination of a 300A current rating, 600V voltage rating, 200 kAIC interrupting rating, Class J configuration, and non-indicating design. Also check its 7.13 x 2 x 2-inch dimensions against the equipment requirements before installation.

For replacement work, don't treat matching amperage—or similar appearance—as enough to establish compatibility. Verify the JFL300 catalog number, fuse class, amperage, voltage, interrupting rating, physical dimensions, and equipment specifications together. If you're unsure whether it suits a particular electrical system, have a qualified electrical professional confirm compatibility.