LIMITRON™ Class RK1 600V
KTS-R — 600Vac, 1-600A, Fast-Acting Fuses
Description: Advanced protection Class RK1 current-limiting,
fast-acting fuses.
Catalog Symbol: KTS-R-(amp)
Ratings:
Volts — 600Vac
Amps — 1-600A
IR — 200kA Vac RMS Sym.
Agency Information:
CE, UL Listed, Std. 248-12, Class RK1, Guide JDDZ,
File E4273
CSA Certified, C22.2 No. 248.12, Class 1422-02, File 53787
Features:
• Single-element, fast-acting fuses with minimal time-delay
• Provides a high degree of short-circuit current-limitation
(component protection)
• Particularly suited for circuits and loads with no heavy surge
currents of motors, transformers, solenoids, and welders
• Commonly used to protect circuit breakers with lower interrupting
ratings.
• If used in circuits with surge currents (motors, etc.) must be
sized to prevent unwanted opening. It is recommended to
use an ultimate protection Low-Peak™ LPS-RK time-delay
fuse for inductive load applications.
• Incorporate Class R rejection feature. Can be inserted in
non-rejection type fuse holders to physically and electrically
replace fast-acting Class H, K1, K5, RK5, and other fastacting
fuses.
| Catalog numbers | |||
| KTS-R-1 | KTS-R-20 | KTS-R-80 | KTS-R-275 |
| KTS-R-2 | KTS-R-25 | KTS-R-90 | KTS-R-300 |
| KTS-R-3 | KTS-R-30 | KTS-R-100 | KTS-R-350 |
| KTS-R-4 | KTS-R-35 | KTS-R-110 | KTS-R-400 |
| KTS-R-5 | KTS-R-40 | KTS-R-125 | KTS-R-450 |
| KTS-R-6 | KTS-R-45 | KTS-R-150 | KTS-R-500 |
| KTS-R-8 | KTS-R-50 | KTS-R-175 | KTS-R-600 |
| KTS-R-10 | KTS-R-60 | KTS-R-200 | |
| KTS-R-12 | KTS-R-70 | KTS-R-225 | |
| KTS-R-15 | KTS-R-75 | KTS-R-250 | |
Carton Quantity and Weight
| Amp rating | Carton qty |
| 1-30 | 10 |
| 40-60 | 10 |
| 70-100 | 1 |
| 110-200 | 1 |
| 225-400 | 1 |
| 450-600 | 1 |
Dimension-in
Recommended Fuse Blocks
| Fuse amps | 1-Pole | 2-Pole | 3-Pole |
| 0-30 | R60030-1 | R60030-2 | R60030-3 |
| 35-60 | R60060-1 | R60060-2 | R60060-3 |
| 70-100 | RM60100-1CR | RM60100-2CR | RM60100-3CR |
| 110-200 | RM60200-1CR | RM60200-2CR | RM60200-3CR |
| 225-400 | RM60400-1CR | RM60400-2CR | RM60400-3CR |
| 450-600 | RM60600-1CR | RM60600-2CR | RM60100-3CR |
For additional information on 600 volt fuse blocks, see Data
Sheet # 1111 (1-60A) and product brochure # 3192 (70-600A).
Fuse Reducers For Class R Fuses
Fuse Reducers For Class R Fuses
| Equipment Fuse Clips | Desired Fuse (case) Size | Catalog Number (Pairs) |
| 60A | 30A | NO.663-R |
| 100A | 30A | NO.216-R |
| 100A | 60A | NO.616-R |
| 200A | 60A | NO.626-R |
| 200A | 100A | NO.2621-R |
| 400A | 100A | NO.2641-R |
| 400A | 200A | NO.642-R |
| 600A | 100A | NO.2661-R |
| 600A | 200A | NO.2662-R |
| 600A | 400A | NO.2664-R |
† Single reducer only (pair not required).
Time-Current Curves - Average Melt
Current-Limitation Curves 