FRN-R Fuse

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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

Time-current curves — average melt:
8 to 60 amps

Current-limitation curves:
 
  Current-limiting effects:
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:
 
 


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