![](/images/mingyue/34.jpg)
![](/images/mingyue/196.jpg)
![](/images/mingyue/269.jpg)
![](/images/mingyue/14.jpg)
![](/images/mingyue/140.jpg)
![](/images/mingyue/246.jpg)
![](/images/mingyue/20.jpg)
![](/images/mingyue/231.jpg)
![](/images/mingyue/251.jpg)
![](/images/mingyue/56.jpg)
![](/images/mingyue/168.jpg)
![](/images/mingyue/338.jpg)
Limitron® fast-acting, RK1 – 250 volt fuses
Limitron® fast-acting, RK1 – 250 volt fuses Catalog symbol - KTN-R-(amps) Description: Advanced protection Class RK1 current-limiting, fast-acting fuses. Specifications: Ratings • Volts: • 250 Vac • 250 Vdc (70-350 A) • Amps - 1-600 A • Interrupting rating: • 200 kA Vac RMS Sym. • 100 kA Vdc Agency Information
![](/image/whatsappp.png)
![](/images/mingyue/73.jpg)
![](/images/mingyue/161.jpg)
![](/images/mingyue/288.jpg)
![](/images/mingyue/93.jpg)
![](/images/mingyue/215.jpg)
![](/images/mingyue/294.jpg)
![](/images/mingyue/85.jpg)
![](/images/mingyue/152.jpg)
![](/images/mingyue/336.jpg)
Frequently Asked Questions
Class RK1 LLNRK 1/10 through 600A LLSRK 35 through 600A KLNR 1 through 600A KLSR 1 through 600A . Class RK5 FLNR 1/10 through 600A FLSR 1/10 through 600A . Class L KLPC 601 through 6000A KLLU 601 through 4000A . Class T JLLN 1 through 1200A JLLS 1 through 800A . Class J JLS 1 through 600A JTD 1 through 600A . Class G SLC ½ …
![](/image/whatsappp.png)
![](/images/mingyue/120.jpg)
![](/images/mingyue/155.jpg)
![](/images/mingyue/248.jpg)
![](/images/mingyue/52.jpg)
![](/images/mingyue/196.jpg)
![](/images/mingyue/266.jpg)
![](/images/mingyue/48.jpg)
![](/images/mingyue/187.jpg)
![](/images/mingyue/309.jpg)
![](/images/mingyue/22.jpg)
![](/images/mingyue/188.jpg)
![](/images/mingyue/284.jpg)
![](/images/mingyue/13.jpg)
![](/images/mingyue/210.jpg)
![](/images/mingyue/275.jpg)
![](/images/mingyue/97.jpg)
![](/images/mingyue/165.jpg)
![](/images/mingyue/258.jpg)
![](/images/mingyue/28.jpg)
![](/images/mingyue/197.jpg)
![](/images/mingyue/292.jpg)
![](/images/mingyue/109.jpg)
![](/images/mingyue/177.jpg)
![](/images/mingyue/258.jpg)
UL/CSA FUSE CLASSES AND APPLICATIONS
CLASS R STANDARDS: UL Standard 248-12, CSA Standard C22.2, No. 106, classified as HRCI-R VOLTAGE RATINGS:250 and 600 volts, AC; 125 and 300 volts DC CURRENT RATINGS:0-600 amps INTERRUPTING RATING: 200,000 amps rms symmetricalTWO CLASSES: RK1 and RK5 Time delay is optional for Class R fuses.
![](/image/whatsappp.png)
![](/images/mingyue/112.jpg)
![](/images/mingyue/138.jpg)
![](/images/mingyue/275.jpg)
Limitron® fast-acting, RK1 – 250 volt fuses
Description: Advanced protection Class RK1 current-limiting, fast-acting fuses. Specifications: Ratings Volts: 250 Vac 250 Vdc (70-350 A) Amps - 1-600 A Interrupting rating: 200 kA Vac RMS Sym. 100 kA Vdc Agency Information UL® Listed, Std. 248-12, Guide JDDZ, File E54273 CSA® Certified, Class 1422-02, File 53787 CE Features:
![](/image/whatsappp.png)
![](/images/mingyue/114.jpg)
![](/images/mingyue/130.jpg)
![](/images/mingyue/328.jpg)
![](/images/mingyue/32.jpg)
![](/images/mingyue/236.jpg)
![](/images/mingyue/276.jpg)
Fuseology
as other RK1 fuses. In fact, the Limitron non-time-delay fuse and the Low-Peak dual-element, time-delay fuse are both classified as RK1. Substantial difference in these two RK1 fuses usually require considerable difference in sizing. Dimensional specifications of each class of fuse does serve as a uniform standard. Class R Fuses
![](/image/whatsappp.png)
![](/images/mingyue/4.jpg)
![](/images/mingyue/240.jpg)
![](/images/mingyue/264.jpg)
![](/images/mingyue/46.jpg)
![](/images/mingyue/146.jpg)
![](/images/mingyue/271.jpg)
![](/images/mingyue/105.jpg)
![](/images/mingyue/237.jpg)
![](/images/mingyue/259.jpg)
![](/images/mingyue/53.jpg)
![](/images/mingyue/167.jpg)
![](/images/mingyue/250.jpg)
![](/images/mingyue/5.jpg)
![](/images/mingyue/235.jpg)
![](/images/mingyue/259.jpg)
![](/images/mingyue/82.jpg)
![](/images/mingyue/235.jpg)
![](/images/mingyue/302.jpg)
![](/images/mingyue/30.jpg)
![](/images/mingyue/228.jpg)
![](/images/mingyue/324.jpg)
![](/images/mingyue/95.jpg)
![](/images/mingyue/167.jpg)
![](/images/mingyue/283.jpg)
Class RK1 Fuses from Littelfuse
Littelfuse offers five different series of class RK1 fuses – the LLSRK series, LLSRK_ID series, LLNRK series, KLSR series and the KLNR series. Browse our class RK1 fuses below. LLSRK_ID. Datasheet; Series Details; Order Samples; UL Class RK1 Dual Element Time-Delay Fuse
![](/image/whatsappp.png)
![](/images/mingyue/37.jpg)
![](/images/mingyue/165.jpg)
![](/images/mingyue/242.jpg)
![](/images/mingyue/62.jpg)
![](/images/mingyue/233.jpg)
![](/images/mingyue/331.jpg)
Fuse size/classes. Help! | Mike Holt's Forum
Devin Hanes. Class RK1 and RK5 fuses are the same physical size, but Class RK1 fuses are more current-limiting than Class RK5 fuses. This means Class RK1 allow less damaging energy to pass through them while opening (blowing). It's the rated voltage and current that alters the dimensions for RK1/RK5 class fuses.
![](/image/whatsappp.png)
![](/images/mingyue/117.jpg)
![](/images/mingyue/155.jpg)
![](/images/mingyue/283.jpg)
![](/images/mingyue/84.jpg)
![](/images/mingyue/141.jpg)
![](/images/mingyue/296.jpg)
EATON CLASS RK CURRENT LIMITING POWER FUSES …
RK1, RK5: Popular Fuses for Motors and Transformers. by Greg Carter. Power fuse safety and test procedures have been established by the U.S, Europe and Asia as performance standards. Power fuses standards of low-voltage (600 volts or less) have evolved into distinct classes. The most common classes are RK1, RK5, G, L, T, J, H and …
![](/image/whatsappp.png)
![](/images/mingyue/44.jpg)
![](/images/mingyue/180.jpg)
![](/images/mingyue/257.jpg)
![](/images/mingyue/51.jpg)
![](/images/mingyue/172.jpg)
![](/images/mingyue/243.jpg)
![](/images/mingyue/53.jpg)
![](/images/mingyue/130.jpg)
![](/images/mingyue/307.jpg)