Fusetron™ FRN-R Class RK5 250Vac/125Vdc
1⁄10-60A, dual element, time-delay fuses
Catalog symbols:
• FRN-R-_ (non-indicating)
• FRN-R-_ID (indicating)
Description:
Eaton Bussmann® series advanced protection,
energy efficient FRN-R Class RK5 dual element,
current-limiting, time-delay fuses with optional
open fuse indication on select ratings. Time-delay
– 10 seconds (minimum) at 500% of rated current
(8 seconds for 1⁄10-30A sizes).
Specifications:
Ratings
• Volts
• 250Vac
• 125Vdc
• Amps 1⁄10-60A
• Interrupting rating
• 200kA Vac RMS Sym.
• 20kA Vdc
Agency information
• UL Listed, Std. 248-12, Class RK-5, 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
• Helps protect motors against burnout from
overloads
• Helps protect motors against burnout from
single-phasing on three-phase systems
• Simplifies and improves blackout prevention
(selective coordination)
• 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
• The overload element provides protection
against low level overcurrent of overloads
and will hold an overload which is five times
greater than the ampere rating of the fuse for a
minimum of ten seconds
| Catalog numbers (amps)-non-indicating fuses | ||
| FRN-R-1/10 | FRN-R-1-8/10 | FRN-R-8* |
| FRN-R-1/8 | FRN-R-2 | FRN-R-9* |
| FRN-R-15/100 | FRN-R-2-1/4 | FRN-R-10* |
| FRN-R-2/10 | FRN-R-2-1/2 | FRN-R-12* |
| FRN-R-1/4 | FRN-R-2-8/10 | FRN-R-15* |
| FRN-R-3/10 | FRN-R-3 | FRN-R-17-1/2* |
| FRN-R-4/10 | FRN-R-3-2/10 | FRN-R-20* |
| FRN-R-1/2 | FRN-R-3-1/2 | FRN-R-25* |
| FRN-R-6/10 | FRN-R-4 | FRN-R-30* |
| FRN-R-8/10 | FRN-R-4-1/2 | FRN-R-35* |
| FRN-R-1 | FRN-R-5 | FRN-R-40* |
| FRN-R-1-1/8 | FRN-R-5-6/10 | FRN-R-45* |
| FRN-R-1-1/4 | FRN-R-6 | FRN-R-50* |
| FRN-R-1-4/10 | FRN-R-6-1/4 | FRN-R-60* |
| FRN-R-1-1/2 | FRN-R-7 | |
| FRN-R-1-6/10 | FRN-R-7-1/2 | |
* Open fuse indication available by inserting the sufix “ID.”
E.g., FRN-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 |
| up to 30 | RM25030-1_ | RM25030-2_ | RM25030-3_ |
| 35 to 60 | RM25060-1CR | RM25060-2CR | RM25060-3CR |
For additional information see data sheet no. 10289.
Fuse reducers for Class R fuses
| Fuse size | Amp size of fuse block or disconnect switch | Catalog no. (pairs) |
| Up to 30A | 60A | NO.263-R |
| Up to 30A | 100A | NO.213-R |
| 35 to 60A | 100A | NO.216-R |
| 35 to 60A | 200A | NO.226-R |
For additional information on Class R fuse reducers, see data sheet no 1118.
Time-current curves — average melt:
1⁄10 to 6-1⁄4 amps
1⁄10 to 6-1⁄4 amps
Time-current curves — average melt:
8 to 60 amps
Current-limitation curves:
Current-limiting effects:Current-limitation curves:
| Prosp S.C.C. | Let-through current (apparent RMS Sym vs fuse rating) | |
| - | 30A | 60A |
| 5000 | 1000 | 2000 |
| 10,000 | 2000 | 3000 |
| 15,000 | 2000 | 3000 |
| 20,000 | 2000 | 4000 |
| 25,000 | 2000 | 4000 |
| 30,000 | 2000 | 4000 |
| 35,000 | 2000 | 4000 |
| 40,000 | 2000 | 5000 |
| 50,000 | 3000 | 5000 |
| 60,000 | 3000 | 5000 |
| 70,000 | 3000 | 6000 |
| 80,000 | 3000 | 6000 |
| 90,000 | 3000 | 6000 |
| 100,000 | 3000 | 6000 |
| 150,000 | 4000 | 7000 |
| 200,000 | 4000 | 8000 |
Fusetron™ FRN-R Class RK5 250Vac, 125/250Vdc
70-600A, dual element, time-delay fuses
Catalog symbols:
• FRN-R-_
Description:
Eaton Bussmann ®series advanced protection,
energy efficient FRN-R Class RK5 dual element,
current-limiting, time-delay fuses. Time-delay – 10
seconds (minimum) at 500% of rated current.
Specifications:
Ratings
• Volts
• 250Vac
• 125Vdc (110-200A)
• 250Vdc (225-600A)
• Amps 70-600A
• Interrupting rating
• 200kA Vac RMS Sym.
• 20kA 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
• Helps protect motors against burnout from
overloads and single-phasing when sized
properly
• Simplifies and improves blackout prevention
(selective coordination)
• 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
• The overload element provides protection
against low level overcurrent of overloads and
will hold on inrush current which is five times
greater than the amp rating of the fuse for a
minimum of ten seconds
| Catalog numbers | ||
| FRN-R-70 | FRN-R-125 | FRN-R-350 |
| FRN-R-75 | FRN-R-150 | FRN-R-400 |
| FRN-R-80 | FRN-R-175 | FRN-R-450 |
| FRN-R-85 | FRN-R-200 | FRN-R-500 |
| FRN-R-90 | FRN-R-225 | FRN-R-600 |
| FRN-R-100 | FRN-R-250 | |
| FRN-R-110 | FRN-R-300 | |
| Amp rating | Carton Qty |
| 70-100 | 5 |
| 110-600 | 1 |
Dimensions - in:
Recommended fuse blocks:
| Fuse amps | 1-Pole | 2-Pole | 3-Pole |
| 70-100 | RM25100-1CR | RM25100-2CR | RM25100-3CR |
| 110-200 | RM25200-1CR | RM25200-2CR | RM25200-3CR |
| 225-400 | RM25400-1CR | RM25400-2CR | RM25400-3CR |
| 450-600 | RM25600-1CR | RM25600-2CR | RM25600-3CR |
For additional information on the RM 250 volt fuse blocks, see
product brochure no. 3192.
use reducers for Class R fuses
| Fuse size | Amp size of fuse block or disconnect switch | Catalog no. (pairs) |
| 65 to 100A | 400A | No. 2641-R* |
| 110 to 200A | 400A | No. 242-R* |
| 65 to 100A | 600A | No. 2661-R* |
| 110 to 200A | 600A | No. 2662-R* |
| 225 to 200A | 600A | No. 2664-R*† |
* These reducers are not CSA Certified.
† Single reducer only (pair not required)
For additional information on Class R fuse reducers, see data sheet
no 1118.
Time-current curves — average melt:
Current-limitation curves:
Time-current curves — average melt:
Current-limitation curves:
Current-limiting effects:
| Prosp. S.C.C. | Let-through current (apparent RMS Sym. vs. fuse rating | |||
| - | 100A | 200A | 400A | 600A |
| 5000 | 3000 | 5000 | 5000 | 5000 |
| 10,000 | 4000 | 7000 | 10,000 | 10,000 |
| 15,000 | 5000 | 8000 | 11,000 | 15,000 |
| 20,000 | 5000 | 8000 | 12,000 | 16,000 |
| 25,000 | 6000 | 9000 | 13,000 | 17,000 |
| 30,000 | 6000 | 10,000 | 14,000 | 18,000 |
| 35,000 | 6000 | 10,000 | 15,000 | 19,000 |
| 40,000 | 7000 | 11,000 | 15,000 | 20,000 |
| 50,000 | 7000 | 11,000 | 17,000 | 21,000 |
| 60,000 | 8000 | 12,000 | 18,000 | 22,000 |
| 70,000 | 8000 | 13,000 | 19,000 | 23,000 |
| 80,000 | 8000 | 13,000 | 19,000 | 24,000 |
| 90,000 | 9000 | 14,000 | 20,000 | 25,000 |
| 100,000 | 9000 | 14,000 | 21,000 | 26,000 |
| 150,000 | 10,000 | 16,000 | 24,000 | 29,000 |
| 200,000 | 11,000 | 18,000 | 26,000 | 32,000 |