Fusetron™ 600 V Class RK5, FRS-R — 600 Vac/300 Vdc,
1/10-60 A, dual element, time-delay fuses
Catalog symbol:
• FRS-R-(amp) (non-indicating)
• FRS-R-(amp)ID (indicating)
Description:
• Advanced protection, energy efficient
Class RK5 dual element, current-limiting,
time-delay fuses with optional open fuse
indication on select ratings
• Time-delay – 10 second (minimum) at 500%
of rated current
Specifications:
Ratings
• Volts
• 600 Vac, 300 Vdc (1/10-30 A)
• 600 Vac, 250 Vdc (35-60 A)
• Amps — 1/10-60 A
• Interrupting rating
• 200 kA Vac RMS Sym
• 20 kA Vdc
Agency information:
• CE, UL® Listed, Std. 248-12, Class RK5, Guide
JDDZ, File E4273
• CSA® Certified, C22.2 No. 248.12, Class
1422-02, File 53787
• CE
Features:
• Dual-element feature provides the best
time-delay performance, allowing closer
sizing and superior protection of motors and
transformers
• Closer sizing allows for smaller fuses and
less costly switches
• Class RK5 fuses with a 200 kA interrupting
rating for use in a broad range of
applications
• Provides motor overload, ground fault, and
short-circuit protection
• Helps protect motors against burnout from
overloads and single-phasing when sized
properly
• Dual-element fuses can be applied in circuits
subject to temporary motor overloads
and surge currents to provide both high
performance short-circuit and overload
protection
• Offers a 10-second time delay at 5 times the
rated current
• The time-delay feature makes it possible
to use fuse amp ratings that are much
smaller than those of non-time delay
fuses. Considerable cost savings occur by
permitting the use of smaller size switches,
panels, and fuses themselves.
• Provides current limitation to help protect
downstream components from high fault
currents.
• Gives motor running back-up protection to
motors without extra costs.
| Catalog numbers (amps)-non-indicating fuses | ||
| FRS-R-1/10 | FRS-R-1-8/10 | FRS-R-8* |
| FRS-R-1/8 | FRS-R-2 | FRS-R-9* |
| FRS-R-15/100 | FRS-R-2-1/4 | FRS-R-10* |
| FRS-R-2/10 | FRS-R-2-1/2 | FRS-R-12* |
| FRS-R-1/4 | FRS-R-2-8/10 | FRS-R-15* |
| FRS-R-3/10 | FRS-R-3 | FRS-S-17-1/2* |
| FRS-R-4/10 | FRS-R-3-2/10 | FRS-R-20* |
| FRS-R-1/2 | FRS-R-3-1/2 | FRS-R-25* |
| FRS-R-6/10 | FRN-R-4 | FRS-R-30* |
| FRS-R-8/10 | FRS-R-4-1/2 | FRS-R-35* |
| FRS-R-1 | FRS-R-5 | FRS-R-40* |
| FRS-R-1-1/8 | FRS-R-5-6/10 | FRS-R-45* |
| FRS-R-1-1/4 | FRS-R-6* | FRS-R-50* |
| FRS-R-1-4/10 | FRS-R-6-1/4* | FRS-R-60* |
| FRS-R-1-1/2 | FRS-R-7* | |
| FRS-R-1-6/10 | FRS-R-7-1/2* | |
* Open fuse indication available by inserting the sufix
“ID.” E.g., FRS-R-15ID.
Carton quantity:| Amp rating | Carton qty. |
| 1/10-60 | 10 |
Dimensions - in:
Recommended fuse blocks:
| Fuse amps | 1-Pole | 2-Pole | 3-Pole |
| 0- 30 | RM60030-1 | RM60030-2 | RM60030-3 |
| 35 to 60 | RM60060-1 | RM60060-2 | RM60060-3 |
Fuse reducers for class R fuses
| Equipment fuse clips | Desired fuse (case) size | Catalog number (pairs) 600V |
| 60A | 30A | No. 663-R |
| 100A | 30A | No. 216-R |
| 100A | 60A | No. 616-R |
| 200A | 60A | No. 626-R |
For additional information on class R fuse reducers, see data
sheet No. 1118.
Current-limiting effectsTime-current curves–average melt
10 to 60 amps
Time-current curves–average melt
1/10 to 8 amps
Current-limitation curves
Current-limitation curves
| Prosp. S.C.C. | Let-through current (apparent RMS Symmetrical vs. fuse rating) | |
| - | 30A | 60A |
| 5000 | 1000 | 1000 |
| 10,000 | 1000 | 2000 |
| 15,000 | 1000 | 2000 |
| 20,000 | 2000 | 2000 |
| 25,000 | 2000 | 2000 |
| 30,000 | 2000 | 3000 |
| 35,000 | 2000 | 3000 |
| 40,000 | 2000 | 3000 |
| 50,000 | 2000 | 3000 |
| 60,000 | 2000 | 3000 |
| 70,000 | 3000 | 4000 |
| 80,000 | 3000 | 4000 |
| 90,000 | 3000 | 4000 |
| 100,000 | 3000 | 4000 |
| 150,000 | 3000 | 5000 |
| 200,000 | 4000 | 6000 |
Fusetron™ 600V Class RK5
FRS-R — 600 Vac/300 Vdc, 65-600 A, dual element, time-delay fuses
Catalog symbol:
• FRS-R-(amp)
Description:
Advanced protection, energy efficient Class RK5
dual element, current-limiting, time-delay fuses.
Time-delay – 10 seconds (minimum) at 500% of
rated current.
Specifications:
Ratings
• Volts — 600Vac, 300Vdc
• Amps — 65-600A
• Interrupting rating
• 200 kA Vac RMS Sym
• 20 kA Vdc
Agency information
• UL® Listed, Std. 248-12, Class RK5, Guide
JDDZ, File E4273
• CSA® Certified, C22.2 No. 248.12, Class
1422-02, File 53787
• CE
Features:
• Provides motor overload, ground fault
and short-circuit protection. When used in
circuits subject to surge currents such as
those caused by motors, transformers and
other inductive components, these fuses
can be sized close to full-load amps to give
maximum overcurrent protection
• The time-delay feature makes it possible
to use fuse amp ratings which are much
smaller than those of non-time delay
fuses. Considerable cost saving occurs by
permitting the use of smaller size switches,
panels and fuses themselves
• Provides a good degree of short-circuit
protection (greater current-limitation) to help
protect downstream components from high
fault currents
• Gives motor running back-up protection to
motors without extra cost
• Helps protect motors against burnout from
overloads and single-phasing when sized
properly
• Simplifies and improves blackout prevention
(selective coordination ratios)
• Dual-element fuses can be applied in
circuits subject to temporary motor
overloads and surge currents to provide
both high-performance, short-circuit and
overload protection
| Catalog numbers | ||
| FRS-R-65 | FRS-R-125 | FRS-R-350 |
| FRS-R-70 | FRS-R-150 | FRS-R-400 |
| FRS-R-75 | FRS-R-175 | FRS-R-450 |
| FRS-R-80 | FRS-R-200 | FRS-R-500 |
| FRS-R-90 | FRS-R-225 | FRS-R-600 |
| FRS-R-100 | FRS-R-250 | |
| FRS-R-110 | FRS-R-300 | |
| Amp rating | Carton qty. |
| 65-100 | 1 |
| 101-200 | 1 |
| 201-400 | 1 |
| 401-600 | 1 |
| Amp rating | A | B |
| 65-100 | 7.88 | 1.11 |
| 110-200 | 9.63 | 1.61 |
| 225-400 | 11.63 | 2.34 |
| 450-600 | 13.38 | 2.88 |
Dimensions - in:
Recommended fuse blocks:
| Fuse amps | 1-Pole | 2-Pole | 3-Pole |
| 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 the RM600 volt fuse blocks, see data sheet
No. 10489.
Fuse reducers for class R fuses
| Equipment fuse clips | Desired fuse (case) size | Catalog numbers (pairs) 600 V |
| 200A | 100A | No. 2621-R |
| 400A | 100A | No. 2641-R |
| 200A | No. 642-R | |
| 100A | No. 2661-R | |
| 600A | 200A | No. 2662-R |
| 400A | No. 2664-R† |
† Single reducer only (pair not required).
For additional information on Class R fuse reducers, see data
sheet No. 1118.
Current-Limitation curves
Time-current curves - average melt
Current-limiting effects
| Prosp. S.C.C | Let-through current (apparent RMS symmetrical vs. fuse rating) | |||
| 100A | 200A | 400A | 600A | |
| 5000 | 3000 | 4000 | 5000 | 5000 |
| 10,000 | 4000 | 5000 | 9000 | 10,000 |
| 15,000 | 4000 | 6000 | 10,000 | 14,000 |
| 20,000 | 5000 | 7000 | 11,000 | 15,000 |
| 25,000 | 5000 | 7000 | 12,000 | 17,000 |
| 30,000 | 5000 | 8000 | 13,000 | 18,000 |
| 35,000 | 5000 | 8000 | 13,000 | 18,000 |
| 40,000 | 6000 | 9000 | 14,000 | 19,000 |
| 50,000 | 6000 | 9000 | 14,000 | 20,000 |
| 60,000 | 6000 | 10,000 | 15,000 | 22,000 |
| 70,000 | 7000 | 11,000 | 17,000 | 23,000 |
| 80,000 | 7000 | 12,000 | 17,000 | 23,000 |
| 90,000 | 7000 | 12,000 | 17,000 | 24,000 |
| 100,000 | 8000 | 13,000 | 18,000 | 25,000 |
| 150,000 | 9000 | 14,000 | 21,000 | 27,000 |
| 200,000 | 9000 | 16,000 | 23,000 | 32,000 |