LLNRK015 - 15Amp Fuse

LLNRK015 - 15Amp Fuse

Some electrical circuits draw a little extra current when equipment starts up. That's normal for motors, transformers, solenoids, and certain lighting systems. The challenge is choosing a fuse that can accommodate those brief surges without compromising the protection the circuit needs. The Littelfuse LLNRK015 15 Amp Class RK1 Time-Delay Fuse is designed for exactly this kind of application, combining time-delay operation with current-limiting protection in a compact, replaceable electrical component.

Part of the Littelfuse POWR-PRO LLNRK series, the LLNRK015 has a 15-amp continuous current rating, a 250VAC maximum voltage rating, and a 125VDC maximum voltage rating. Its Slo-Blo time-delay characteristic helps accommodate normal, short-duration inrush currents while providing overload and short-circuit protection according to the fuse's specified time-current characteristics. For electricians and maintenance professionals working with established electrical systems, that balance is important. A fuse that opens unnecessarily can interrupt operations, while an incorrectly selected fuse can leave your equipment without the intended protection.

Key Features and Benefits

• 15 Amp Continuous Current Rating
• 250VAC Maximum Voltage Rating
• 125VDC Maximum Voltage Rating
• Class RK1 Fuse Classification
• POWR-PRO Fuse Family
• Littelfuse LLNRK Series
• Slo-Blo Time-Delay Operation
• Dual-Element Fuse Construction
• Spring-Loaded Thermal Overload Element
• Current-Limiting Protection
• Short-Circuit Protection
• Low-Resistance Fuse Design
• Non-Indicating Configuration
• Fuse Block and Clip Mounting

Technical Specifications

• Catalog Number: LLNRK015
  
• Manufacturer: Littelfuse
  
• Product Type: Current-Limiting Time-Delay Fuse
  
• Product Family: POWR-PRO
  
• Series: LLNRK
  
• Fuse Class: Class RK1
  
• Continuous Current Rating: 15 Amps
  
• Maximum AC Voltage: 250VAC
  
• Maximum DC Voltage: 125VDC
  
• Opening Characteristic: Slo-Blo / Time Lag (T) / Time Delay
  
• Fuse Construction: Dual Element
  
• Overload Element: Thermally Reversible, Spring-Loaded Thermal Element
  
• AC Interrupting Value 1: 200,000 Amps at 250VAC
  
• AC Interrupting Value 2: 300,000 Amps at 250VAC
  
• DC Interrupting Rating: 20,000 Amps at 125VDC
  
• Current-Limiting Design: Yes
  
• Indicating Feature: No
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Manufacturer-Identified Holder Series: LFR25030
  

Material Compliance and Certifications

The supplied specifications do not identify the fuse's exact body or terminal materials. They also do not provide individual UL, CSA, or other certification numbers or markings for this catalog number. Any required certification or material-compliance status should be confirmed through the manufacturer's current documentation and product markings.

Fuse replacement and installation should be performed by qualified personnel following appropriate electrical safety procedures.

Where It Works Best

• General-Purpose Electrical Circuits
• Motor Circuits
• Transformer Circuits
• Solenoid Circuits
• Fluorescent Lighting Circuits
• High-Inrush-Current Equipment
• Service Entrance Applications
• LFR25030 Series Fuse Holders
• Industrial Equipment Maintenance
• Commercial Facility Maintenance
• Existing Electrical System Repairs
• Form, Fit, and Functional Fuse Replacement