Littelfuse FLSR450
MPNFLSR450
Fuse, 450A, 600VAC/300VDC, Class RK5|fuses, Rejection, Brand Or Series: Class Rk5, Current Rating: 450 Amp, Interrupting Rating: 200000 Amp Vac Rms Symmetrical, 20000 Amp Vdc, Terminal Type: Blade, Rejection, Dimensions: 3 3/32 Diameter X 13 3/8 Length Inch, Voltage Rating: 600 Vac/300 Vdc,
$241.98 – $313.63Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | FLSR |
| Equivalent series | ECSR, FLSR, FRS-R, TRS-R |
| Equivalent brand and series | Bussmann FRS-R; Edison ECSR; Littelfuse FLSR; Mersen TRS-R |
| Compatible fuse block series | LFR |
| AC voltage rating | 600V AC |
| DC voltage rating | 300V DC |
| Body material | Fiberglass |
| Standards | CE; CSA Certification; QPL-W-F-1814; UL 248-12 Class RK5 |
| Amps | 450 A |
| Brand | LITTELFUSE |
| Class | RK5 |
| Speed | Time Delay |
All specifications
| Parameter | Value |
|---|---|
| Length | 13-3/8 in |
| Element | Dual |
| Diameter | 3-3/32 in |
| Fuse size | 13-3/8 in L x 3-3/32 in dia |
| Body style | Blade |
| Interrupt rating | 200kA at 600V AC; 20kA at 300V DC |
| Visual indication | Nonindicating |
| Fits fuse block style | Rejection |
MPN
FLSR450