LLNRK001 - 1 Amp Fuse

LLNRK001 - 1 Amp Fuse

When you're protecting an electrical circuit, choosing the correct fuse is about more than matching the amperage. The Littelfuse LLNRK001 is a 1-amp, Class RK1 time-delay fuse from the POWR-PRO LLNRK series, designed for overload and short-circuit protection in compatible electrical systems. Whether you're maintaining an existing electrical installation or replacing a fuse in a compatible holder, the LLNRK001 offers clear electrical specifications to help you choose the right match. When properly selected, installed, and operated within its rated limits, it's built to last as part of a well-maintained electrical system.

Key Features and Benefits

• 1A continuous current rating: Designed for circuits requiring a 1-amp fuse, helping protect compatible electrical equipment against overcurrent conditions.
• Class RK1 protection: Provides the Class RK1 characteristics specified for applications requiring this fuse classification.
• Time-delay operation: The Slo-Blo/Time Lag design accommodates temporary current increases according to its time-current characteristics while providing overload protection.
• AC and DC ratings: Suitable for properly designed applications up to 250VAC or 125VDC, subject to the applicable interrupting ratings.
• Non-indicating construction: Littelfuse identifies the LLNRK001 as a non-indicating fuse.

Technical Specifications

• Manufacturer: Littelfuse
  
• Catalog Number: LLNRK001
  
• Series: LLNRK
  
• Product Family: POWR-PRO
  
• Product Type: Time-Delay Fuse
  
• Fuse Class: Class RK1
  
• Continuous Current Rating: 1A
  
• Maximum AC Voltage: 250VAC
  
• Maximum DC Voltage: 125VDC
  
• AC Interrupting Ratings: 200,000A and 300,000A at 250VAC, as listed in the supplied manufacturer specifications
  
• DC Interrupting Rating: 20,000A (20 kA) at 125VDC
  
• Opening Characteristic: Slo-Blo / Time Lag (T) / Time Delay
  
• Indicating: No
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Manufacturer-Referenced Holder Series: LFR25030
  

Material Compliance and Certifications

Littelfuse identifies the LLNRK001 as a Class RK1 fuse, with manufacturer-published voltage, current, and interrupting ratings.

Where It Works Best

The Littelfuse LLNRK001 1A fuse is intended for compatible electrical systems requiring Class RK1 time-delay protection at the specified voltage and current ratings. Littelfuse identifies the LLNRK and LLSRK fuse families for use in service entrance, main, feeder, and general-purpose branch circuits.