LLSRK015ID - 15Amp Fuse

LLSRK015ID - 15Amp Fuse

When your fuse opens, the last thing your maintenance team needs is a lengthy search to figure out which one failed. The Littelfuse LLSRK015ID 15 Amp Class RK1 time-delay indicating fuse makes that job easier. Designed for industrial and commercial electrical systems, this Powr-Pro fuse combines current-limiting protection with a built-in indicator that helps technicians quickly spot an opened fuse. It's a practical feature, especially when equipment is down and every minute counts.

Key Features and Benefits

• 15 Amp Continuous Current Rating
• 600V AC / 300V DC Voltage Ratings
• Class RK1 Current-Limiting Protection
• Patented Indicator™ Technology
• Darkening Blown-Fuse Indicator Window
• Time-Delay (Slo-Blo) Performance
• High Interrupting Capacity
• Precision-Formed Short-Circuit Elements
• Solid-State Overload Section
• No Moving Parts in the Overload Section
• Reduced Nuisance Fuse Openings
• Improved Cycling Characteristics
• Faster Troubleshooting and Maintenance

Technical Specifications

• Manufacturer: Littelfuse
  
• Catalog Number: LLSRK015ID
  
• Product Series: LLSRK_ID
  
• Product Family: Powr-Pro Fuse
  
• Product Type: Time-Delay Indicating Fuse
  
• Fuse Class: Class RK1
  
• Continuous Current Rating: 15 Amps
  
• Maximum AC Voltage: 600V AC
  
• Maximum DC Voltage: 300V DC
  
• Opening Characteristic: Slo-Blo / Time Lag (T) / Time Delay
  
• Indicating Feature: Yes
  
• Indicator Operation: Window Darkens When Fuse Opens
  
• Fuse Size / Style: Industrial Cartridge
  
• AC Interrupting Rating: 200,000A at 600V AC
  
• Additional Manufacturer-Published AC Interrupting Rating: 300,000A at 600V AC
  
• DC Interrupting Rating: 20,000A at 300V DC
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Manufacturer-Listed Holder Series: LFR60030 Series
  
• Short-Circuit Elements: Precision-Formed
  
• Overload Section: Solid-State Design With No Moving Parts
  

Material Compliance and Certifications

The Littelfuse LLSRK015ID belongs to the Powr-Pro LLSRK_ID series of Class RK1 current-limiting fuses. It provides overcurrent protection in appropriately rated electrical systems and has published interrupting capacities for both AC and DC applications.

The manufacturer publishes both 200kA and 300kA AC interrupting figures. Do not treat these as interchangeable certification ratings. For applications with specific electrical, regulatory, or material requirements, verify the applicable ratings and approvals against current manufacturer documentation.

Where It Works Best

• Industrial Machinery
• Motor Control Circuits
• Electrical Control Panels
• Commercial Electrical Distribution
• Manufacturing Facilities
• Industrial Control Equipment
• Equipment With Normal Startup Current Surges
• Maintenance-Intensive Electrical Systems
• Compatible Class RK1 Fuse Blocks and Holders