LLSRK175ID - 175Amp Fuse

LLSRK175ID - 175Amp Fuse

When your industrial equipment stops unexpectedly, every minute spent searching for the problem costs productivity. The Littelfuse LLSRK175ID helps take some of the guesswork out of electrical troubleshooting. This 175-amp Class RK1 time-delay indicating fuse features patented Indicator™ technology with a built-in window that darkens when the fuse opens. Instead of spending valuable time checking multiple fuses to identify the affected circuit, maintenance technicians get a visible indication of where to start. This straightforward feature can make a noticeable difference when equipment needs attention.

Key Features and Benefits

• 175A Time-Delay Circuit Protection
• Built-In Blown-Fuse Indicator
• Patented Indicator™ Technology
• Class RK1 Current-Limiting Design
• High Short-Circuit Interrupting Capacity
• Precision-Formed Short-Circuit Elements
• Solid-State Overload Section
• No Moving Parts in Overload Section
• Reduced Nuisance Fuse Openings
• Improved Current-Cycling Performance
• Faster Fault Identification
• Reduced Troubleshooting Time
• Knife-Blade Terminals

Technical Specifications

• Manufacturer: Littelfuse
  
• Catalog Number: LLSRK175ID
  
• Series: LLSRK_ID
  
• Product Family: POWR-PRO Fuse
  
• Product Type: Industrial Cartridge Fuse
  
• Fuse Class: Class RK1
  
• Continuous Current Rating: 175A
  
• 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
  
• Protection Design: Current-Limiting
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Associated Fuse Holder Series: LFR60200 Series
  

Material Compliance and Certifications

The available product specifications do not explicitly identify individual UL or CSA certification listings, RoHS compliance, REACH declarations, or detailed material composition information for this catalog number. If you need specific regulatory approvals or material compliance documentation, verify those details in the latest Littelfuse documentation for the exact LLSRK175ID part number.

Proper fuse selection should account for the electrical system's operating characteristics, available fault current, applicable safety standards, and equipment manufacturer requirements.

Where It Works Best

• Industrial Motor Circuits
• Manufacturing Machinery
• Factory Electrical Equipment
• Industrial Control Panels
• Commercial Electrical Systems
• Motor-Driven Equipment
• Circuits with Temporary Startup Surges
• Equipment with Repeated Operating Cycles
• Industrial Maintenance and Replacement
• High Available Fault-Current Applications
• Facilities Requiring Visible Fuse Indication
• Compatible Class RK1 Fuse Holders