LLNRK002 - 2Amp Fuse

LLNRK002 - 2Amp Fuse

When replacing a fuse in your existing electrical system, getting the details right matters. The amperage, voltage rating, fuse class, and time-delay characteristics all play a part in maintaining the circuit's intended protection. The LLNRK002 Littelfuse POWR-PRO 2 Amp Time-Delay Fuse brings these specifications together in a Class RK1 current-limiting fuse designed for compatible electrical distribution and control applications.

Part of the Littelfuse LLNRK series, the LLNRK002 has a 2-amp continuous current rating, a 250VAC maximum voltage rating, and a 125VDC maximum voltage rating. Its Slo-Blo time-delay design allows the fuse to tolerate certain temporary current surges, such as those associated with equipment startup, while providing overcurrent protection according to its published time-current characteristics. For electricians and maintenance professionals, this distinction is important when matching a replacement fuse to the original circuit requirements.

Key Features and Benefits

• 2 Amp Continuous Current Rating
• 250VAC Maximum Voltage Rating
• 125VDC Maximum Voltage Rating
• Class RK1 Fuse Classification
• Slo-Blo Time-Delay Operation
• Current-Limiting Fuse Design
• POWR-PRO Fuse Family
• LLNRK Series Configuration
• Non-Indicating Construction
• Fuse Block Mounting
• Fuse Clip Compatibility
• Compatible Fuse Holder Applications
• Existing Circuit Protection Maintenance
• Form, Fit, and Functional Replacement

Technical Specifications

• Catalog Number: LLNRK002
  
• Manufacturer: Littelfuse
  
• Product Category: Electrical Fuse
  
• Product Family: POWR-PRO
  
• Series: LLNRK
  
• Fuse Class: Class RK1
  
• Fuse Type: Time-Delay Current-Limiting Fuse
  
• Continuous Current Rating: 2 Amps
  
• Maximum AC Voltage: 250VAC
  
• Maximum DC Voltage: 125VDC
  
• Opening Characteristic: Slo-Blo / Time Lag (T) / Time Delay
  
• AC Interrupting Rating 1: 200,000 Amps at 250VAC
  
• AC Interrupting Rating 2: 300,000 Amps at 250VAC
  
• DC Interrupting Rating: 20,000 Amps at 125VDC
  
• Current-Limiting Classification: Class RK1
  
• Indicating Feature: No
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Manufacturer-Identified Holder Series: LFR25030
  

Material Compliance and Certifications

The manufacturer identifies the LLNRK002 as a Class RK1, 2-amp, time-delay current-limiting fuse in the Littelfuse POWR-PRO LLNRK series. This classification is important in determining its suitability for an existing electrical installation.

The LLNRK002 uses a time-delay opening characteristic, which should match the original protective design. Replacing a time-delay fuse with a different fuse characteristic—or using a different ampere rating—can change how the circuit responds to overloads and faults.

Although the supplied specifications identify the product as a Class RK1 fuse, they do not provide a complete list of individual UL, CSA, or other certification markings. Verify specific listings, approvals, and compliance claims using the manufacturer's current documentation and the markings on the fuse itself.

Where It Works Best

• Compatible Class RK1 Fuse Applications
• Existing 2 Amp Fused Circuits
• 250VAC Electrical Circuits
• 125VDC Electrical Circuits
• Time-Delay Fuse Replacement
• Current-Limiting Fuse Applications
• Electrical Control Equipment
• Facility Maintenance Applications
• Service Entrance Protection Applications
• Main Circuit Protection Applications
• Feeder Circuit Protection Applications
• General-Purpose Branch Circuits
• LFR25030 Series Fuse Holders
• Form, Fit, and Functional Replacement