JLS300 - 300 Amp Fuse

JLS300 - 300 Amp Fuse

Finding the right 300A Class J fuse means looking beyond the amp rating and ensuring the full electrical and physical specifications match your equipment. The JLS300 is a 300-amp, fast-acting Class J fuse rated for up to 600VAC, with a 200 kA interrupting rating at 600VAC.

Key Features and Benefits

• 300A continuous current rating for equipment requiring a 300-amp fuse
• Maximum voltage rating of 600VAC
• Fast-acting (F) opening characteristic
• Class J fuse classification
• Part of the JLS current-limiting fuse family
• Knife-blade construction for the specified mounting arrangement
• Non-indicating configuration
• Mounts using a compatible fuse block, clip, or holder
• LFJ60400 Series identified as the corresponding holder family

Technical Specifications

• Catalog Number: JLS300
  
• Series: JLS
  
• Product Type: Class J Fuse
  
• Continuous Current Rating: 300A
  
• Maximum AC Voltage: 600VAC
  
• Interrupting Rating: 200 kA at 600VAC
  
• Interrupt Amperage: 200,000A
  
• Interrupt Voltage Type: AC
  
• Interrupt Voltage: 600VAC
  
• Opening Characteristic: Fast-Acting (F)
  
• Fuse Class: Class J
  
• Family Style: Current Limiting
  
• Construction / Size: Knife-Blade
  
• Indicating: No
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Specified Holder Series: LFJ60400 Series
  

Material Compliance and Certifications

The supplied product specifications identify the JLS300 as a Class J, 300A fast-acting fuse with a current-limiting family style, 600VAC maximum rating, 200 kA interrupting rating at 600VAC, and knife-blade construction.

Where It Works Best

The JLS300 is best suited to electrical equipment that specifically requires a 300A Class J fast-acting fuse with ratings that match the JLS300. For AC applications, confirm that the equipment and circuit requirements fall within the fuse's 600VAC maximum voltage rating and are compatible with its 200 kA interrupting rating at 600VAC.