Littelfuse LRU2662R Class R Fuse Reducer – 600A to 200A – 250/600VAC – Reducing Adapter

The Littelfuse LRU2662R is a Class R fuse reducer designed to allow the safe use of lower-amperage fuses in higher-rated Class R fuse holders. It reduces a 600A fuse holder capacity to accommodate 200A Class R fuses, improving installation flexibility and reducing the need for multiple fuse block sizes in electrical distribution systems.

Voltage and Rating

• Current Rating: 200 Amps (reduced from 600A holder rating)
• Voltage Rating: 250/600 Volts AC
• Fuse Class: Class R

Key Specifications

• Product Type: Fuse Reducer
• Series: LRUR
• Compatibility: Designed for use with Littelfuse FLNR_ID/FLSR_ID, IDSR, LLNRK/LLSRK, and KLNR/KLSR series fuses
• Reduction Range: 600A fuse holder reduced to 200A fuse capacity
• Mounting Type: Class R fuse holder adapter

Technical Specifications

• Function: Current rating reduction adapter for fuse holders
• Construction: Durable insulating and conductive materials for secure electrical contact
• Application: Enables safe use of lower-rated Class R fuses in higher-rated fuse bases
• Safety Design: Ensures proper fitment and secure electrical connection

Product Data

• Manufacturer: Littelfuse
• Model Number: LRU2662R
• Series: LRUR Fuse Reducer Series

Features

• Simplifies inventory by enabling multiple fuse ratings in one holder size
• Provides flexible system design in industrial panels and MCCs
• Maintains reliable electrical contact and safety compliance
• Compatible with multiple Littelfuse RK1 and RK5 fuse families
• Ideal for power distribution and control system applications