Littelfuse FLSR300ID
MPNFLSR300ID
Fuse, 300A, 600VAC/300VDC, Class RK5|300 Amp Fuse, Rejection, Brand or Series: Class RK5, Indicator, Interrupting Rating: 200000 Amp VAC RMS Symmetrical, Terminal Type: Blade, Rejection, Dimensions: 2 19/32 Diameter x 11 5/8 Length Inch, Voltage Rating: 600 VAC/300 VDC, Features: Time Delay, Dual Element, Visual Trip Indication
$242.39 – $257.62Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Class RK5 |
| Standard | Standard 248-12 UL Listed/CSA |
| Category | Dual Element Fuses |
| Sub brand | POWR-GARD FLSR Series |
| Manufacturer | Littelfuse, Inc. |
| Sub-Category | UL Power Fuse |
| Prop 65 warning | WARNING_CANCER_AND_REPRODUCTIVE_HARM_WWW.P65WARNI |
| Special features | Time-Delay |
| Manufacturer brand | Littelfuse, Inc. |
| Product description | Littelfuse FLSR300ID 600V Indicating Fuse |
| Full technical description | Class RK5 Type; 11-5/8 Inch; UL 248-12, CSA, Qpl-Wf-1814, CE Approval; 600 Vac/300 VDC Voltage Rating; 2-19/32 Inch Diameter; 200000 Ampere (Symmetrical), 20000 Ampere (DC) Interrupting Rating; 300 Ampere Current Rating; Blade Terminal Type; Dual Element, Time Delay Characteristics; Powr-Gard [R], Slo-Blo [R] Brand; Includes Indicator; Application Service Entrance Switches, Switchboard Main and Feeder Switches, Motor Control Center Mains and Motor Branch Circuits, Individual Fused Combination Motor Controllers, Distribution Panelboards, Industrial Control Panels, Protection of Fully-Rated Panelboards and Loadcenters, All General Purpose Circuits; FLSR_ID Model |
| Proposition 65 warning | WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. |
MPN
FLSR300ID