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Littelfuse

Littelfuse FLSR2.25 2.25A 600V Class RK5 Dual-Element Time-Delay Fuse

Part Number: FLSR2.25

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FLSR2.25 provides a 2.25A rating in the FLSR Series while supporting 600V AC / 300V DC circuits. It combines dual-element Class RK5 fuse performance with a documented 200kA AC interrupting rating. Confirm application details against the manufacturer datasheet.

Rated Current2.25A
Rated Voltage600V AC / 300V DC
Breaking Capacity200kA AC
PackageClass R

In the Littelfuse FLSR Series, FLSR2.25 provides 2.25A overcurrent protection at 600V AC / 300V DC. With a Class R form factor, the part is intended for cartridge / clip mounting and carries a 200kA AC primary rating. Published dimensions for this rating/configuration are 127.0mm length; 20.7mm max body diameter. Its dual-element time-delay behavior is intended to ride through normal motor inrush while protecting against overloads and short circuits. Typical uses cover Motor, Transformer, Service Entrance, Feeder Circuits, general-purpose circuits. Check UL 248-12 and the manufacturer datasheet before final selection.

Technical Specifications

Part Number
FLSR2.25
Manufacturer Part Number
FLSR2.25
Series
FLSR Series
Fuse Type
Dual-Element Time-Delay Class RK5 Fuse
Current Rating
2.25A
Voltage Rating
600V AC / 300V DC
AC / DC
AC/DC
Breaking Capacity
200kA AC
Package / Dimensions
Class R
Mounting
Cartridge / Clip
Application
Feeder circuits · General purpose protection · Motor · Service entrance · Transformer
Standard
UL 248-12
Terminal Type
Ferrule / Blade (amp-dependent)
Fuse Speed
Dual Element · Time Delay
Utilization Class
Class RK5
Approvals
CSA · UL Listed
Certifications
UL Listed · CSA
DC Voltage Rating
300V DC
DC Interrupting Rating
20kA

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