LLSRK080ID - 80Amp Fuse

LLSRK080ID - 80Amp Fuse

A blown fuse is frustrating enough. Spending extra time figuring out which one failed only makes matters worse. The Littelfuse LLSRK080ID helps take the guesswork out of troubleshooting with a built-in indicator window that darkens when the fuse opens. One quick look can point maintenance crews toward the problem. This 80-amp Class RK1 time-delay fuse is part of the Littelfuse POWR-PRO LLSRK_ID series, designed to protect your industrial electrical circuits against overloads and short circuits. Its time-delay characteristics help accommodate brief current surges, including those commonly seen during motor startup, without unnecessary fuse openings.

Key Features and Benefits

• 80-Amp Time-Delay Protection
• Built-In Blown-Fuse Indicator
• Patented Indicator™ Technology
• Class RK1 Current-Limiting Design
• High Interrupting Capacity
• Precision-Formed Short-Circuit Elements
• Solid-State Overload Section
• Reduced Nuisance Opening

Technical Specifications

• Manufacturer: Littelfuse
  
• Catalog Number: LLSRK080ID
  
• Series: LLSRK_ID
  
• Product Family: POWR-PRO Fuse
  
• Product Type: Industrial cartridge fuse
  
• Fuse Class: Class RK1
  
• Continuous Current Rating: 80A
  
• Maximum AC Voltage: 600V AC
  
• Maximum DC Voltage: 300V DC
  
• Opening Characteristic: Slo-Blo / Time Lag (T) / Time Delay
  
• Terminal Style: Knife-Blade
  
• Blown-Fuse Indicator: Yes
  
• AC Interrupting Rating: 200,000A at 600V AC
  
• Additional AC Interrupting Rating: 300,000A at 600V AC, subject to applicable manufacturer rating conditions
  
• DC Interrupting Rating: 20,000A at 300V DC
  
• Short-Circuit Elements: Precision-formed
  
• Overload Section: Solid-state design with no moving parts
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Associated Fuse Holder Series: LFR60100 Series
  

Material Compliance and Certifications

The Littelfuse LLSRK080ID is a Class RK1 industrial fuse with manufacturer-published electrical ratings for overcurrent protection. Its specifications include an 80A continuous current rating, maximum voltage ratings of 600V AC and 300V DC, and the interrupting capacities listed above.

Where It Works Best

• Industrial Motor Circuits
• Industrial Control Panels
• Manufacturing Equipment
• Commercial Electrical Systems
• Electrical Maintenance and Replacement
• Circuits with Temporary Current Surges
• Equipment Requiring Visible Fuse Indication
• High Fault-Current Applications