JLS450 - 450 Amp Fuse

JLS450 - 450 Amp Fuse

When you're replacing a 450A Class J fuse, the amperage matters—but it's not the only specification that has to match. The JLS450 is a 450-amp fast-acting fuse rated for operation up to 600VAC, with a 200 kA interrupting rating at 600VAC. When matching an existing JLS450 or checking compatibility with electrical equipment, review the full specification—not just "450 amps." Fuse class, voltage, interrupting rating, opening characteristic, physical configuration, and mounting method should match the equipment requirements.

Key Features and Benefits

• 450A continuous current rating for equipment requiring a 450-amp fuse
• Class J fuse classification
• Rated for a maximum of 600VAC
• Fast-acting (F) opening characteristic
• Part of the JLS current-limiting fuse family
• Knife-blade construction provides a clearly defined physical configuration
• Non-indicating design
• Installs through a compatible fuse block, clip, or holder
• LFJ60600 Series specified as the corresponding holder family
• Clearly identified electrical and mounting specifications make it easier to compare the fuse against existing equipment requirements

Technical Specifications

• Catalog Number: JLS450
  
• Series: JLS
  
• Product Type: Class J Fuse
  
• Continuous Current Rating: 450A
  
• 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: LFJ60600 Series
  

Material Compliance and Certifications

The supplied product information identifies the JLS450 as a Class J fast-acting fuse. It specifies its 450A current rating, 600VAC maximum voltage, 200 kA interrupting rating at 600VAC, current-limiting family style, knife-blade configuration, and mounting method.

Where It Works Best

The JLS450 450A Class J fuse is best suited to electrical equipment that specifically calls for a 450A, fast-acting Class J fuse with matching electrical and mechanical specifications. For AC service, confirm that the circuit and equipment requirements are within the fuse's 600VAC maximum voltage rating and compatible with its 200 kA interrupting rating at 600VAC.