KLU-800 - 800Amp Fuse

KLU-800 - 800Amp Fuse

When you're replacing a high-amperage fuse, 800A is only the first number to check. The KLU-800 is a Class L, 800A fuse rated for 600V, with a 200 kAIC interrupt rating at 600VAC and a manufacturer-specified 5-second response time at 500%. It uses bolted blade connections at both ends and mounts by bolt, so check both electrical ratings and physical fit before installation. At 8.63 inches long and 2.5 inches high by 2.5 inches wide, this is a substantial fuse with a very specific configuration. It's also non-indicating, RoHS-compliant, and CE-marked. In short, if the equipment calls for a KLU-800, matching the full set of specifications—not just the amp rating—is the smarter way to confirm you're looking at the right replacement.

Key Features and Benefits

• 800A rating for equipment designed around this specific current requirement.
• Rated for 600V.
• Class L design helps you quickly narrow down the correct fuse type.
• The manufacturer specifies a 5-second response time at 500%.
• Uses bolted blade ends on both sides rather than a cartridge-style connection.
• Bolt mounting provides another important checkpoint when confirming physical compatibility.
• This is a non-indicating fuse, so there's no built-in indication feature to rely on.
• RoHS compliant according to the supplied manufacturer data.

Technical Specifications

• Catalog Number: KLU-800
  
• Product Type: Fuse
  
• UPC: 051712135054
  
• Amperage Rating: 800A
  
• Voltage Rating: 600V
  
• Class: Class L
  
• Interrupt Rating: 200 kAIC at 600VAC
  
• Response Time: 5 seconds at 500%
  
• Connection: Bolted blade end x bolted blade end
  
• Mounting Method: Bolt
  
• Fuse Indicator: Non-indicating
  
• Special Features: Non-indicating
  
• Length/Depth: 8.63 in
  
• Height: 2.5 in
  
• Width: 2.5 in
  
• Weight: 3.75 lb
  
• Compliance: RoHS Compliant
  
• Marking: CE Marked
  

Material Compliance and Certifications

The manufacturer information supplied for the KLU-800 specifically lists the fuse as RoHS-compliant and CE-marked.

Where It Works Best

The KLU-800 makes sense when equipment specifications call for an 800A Class L fuse with a 600V rating, a 200 kAIC interrupt rating at 600VAC, and the corresponding bolted-blade configuration.

Don't overlook the mechanical side of the match. The equipment needs to accommodate the fuse's bolt mounting, bolted blade ends, and 8.63" x 2.5" x 2.5" dimensions. The specified 5-second response at 500% and non-indicating configuration should also agree with the requirements of the equipment being serviced.