DistyParts Icon
LRU663R The Littelfuse Inc. LRU663R is a fuse reducer designed for Class R fuses. It is compatible with various fuse types including FLNR, FLSR, and LLNRK.
Mfr Part #:

LRU663R

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. LRU663R is a fuse reducer designed for Class R fuses. It is compatible with various fuse types including FLNR, FLSR, and LLNRK.
Stock on Request

LRU663R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accessory Type
For Use With
View Similar Products (0)

LRU663R Description

Short technical summary and product information.

The Littelfuse Inc. LRU663R is a fuse reducer accessory used in circuit protection applications. This component is specifically designed for use with UL Class R fuses, offering compatibility with models such as FLNR, FLSR, IDSR, LLNRK, LLSRK, KLNR, and KLSR.

 

This fuse reducer facilitates the adaptation of existing fuse holders or circuits to accommodate different fuse ratings, typically allowing a higher rated fuse to be used in a lower rated circuit safely. It is part of Littelfuse's range of circuit protection accessories.

 

Environmental compliance for the LRU663R includes RoHS3 compliance and a Moisture Sensitivity Level (MSL) of 1. The REACH status is noted as unaffected. This component is intended for use within electrical systems requiring reliable fuse protection and circuit integrity.

LRU663R Quick Information

Product Type: Fuse Reducer
Canonical Name: Littelfuse Inc. LRU663R Fuse Reducer
Subcategory: Fuse Reducer

LRU663R Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LRU663R Features

  • Class R fuse reducer from 60A to 30A.
  • Compatible with multiple Littelfuse fuse series.
  • Designed for standard Class R fuse holders.
  • Enables lower current fuse usage in 60A holders.
  • Reliable mechanical fit and electrical connection.

LRU663R Applications

  • Reduces 60A Class R fuse to 30A
  • Adapts fuse holders for smaller fuses
  • For use with UL Class R fuses
  • Compatible with FLNR, FLSR, IDSR fuses
  • Used in industrial power distribution panels

LRU663R FAQs

4 frequently asked questions generated from this part’s specifications.
What type of accessory is the LRU663R?

The LRU663R is a fuse reducer.

Which fuse types is the LRU663R compatible with?

It is compatible with Fuse types FLNR, FLSR, IDSR, LLNRK, LLSRK, KLNR, and KLSR.

What is the RoHS status of the LRU663R?

The LRU663R is RoHS3 compliant.

What is the Moisture Sensitivity Level (MSL) for the LRU663R?

The Moisture Sensitivity Level (MSL) is 1.

LRU663R Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
View All Alternate Parts
LRU216R
LRU216R
Littelfuse Inc.
The Littelfuse Inc. LRU216R is a Fuse Reducer designed for use with a variety of fuse types. It is RoHS3 Compliant.
View Part
LRU213R
LRU213R
Littelfuse Inc.
The Littelfuse LRU213R is a Class R fuse reducer designed for industrial applications. It allows a 30A fuse to fit into 60A clips.
View Part
LRU2621R
LRU2621R
Littelfuse Inc.
The Littelfuse Inc. LRU2621R is a fuse reducer accessory. It is designed for use with various fuse types including FLNR, FLSR, IDSR, LLNRK, LLSRK, KLNR, and KLSR.
View Part
LRU263R
LRU263R
Littelfuse Inc.
The Littelfuse Inc. LRU263R is a fuse reducer designed for use with various fuse types including FLNR, FLSR, and LLNRK. It is RoHS3 compliant.
View Part
Home
Account

Categories