Littelfuse FLSR040
MPNFLSR040
Fuse, 40A, 600VAC/300VDC, Class RK5|40 Amp Fuse, Rejection, Brand or Series: Class RK5, Indicator, Interrupting Rating: 200000 Amp VAC RMS Symmetrical, Terminal Type: Blade, Rejection, Dimensions: 1 5/16 Diameter x 7 7/8 Length Inch, Voltage Rating: 600 VAC/300 VDC, Features: Time Delay, Dual Element.
$26.14 – $28.87Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 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 | 40 A |
| Brand | LITTELFUSE |
| Class | RK5 |
| Speed | Time Delay |
All specifications
| Parameter | Value |
|---|---|
| Length | 5-1/2 in |
| Element | Dual |
| Diameter | 1-1/16 in |
| Fuse size | 5-1/2 in L x 1-1/16 in dia |
| Body style | Cylindrical |
| Interrupt rating | 200kA at 600V AC; 20kA at 300V DC |
| Visual indication | Nonindicating |
| Fits fuse block style | Rejection |
MPN
FLSR040