Effective February 2016
Technical Data1010 Supersedes July 2013
Fusetron FRN-R Class RK5 250Vac, 125/250Vdc
70-600A, dual element, time-delay fuses
Catalog numbers (amps)
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
Carton Quantity:
Amp rating Carton qty.
70 100 5
110 600 1
Catalog symbols:
Features:
FRN-R-_
Provides motor overload, ground fault and
short-circuit protection
Description:
Helps protect motors against burnout from
Eaton Bussmann series advanced protection,
overloads and single-phasing when sized
energy efficient FRN-R Class RK5 dual element,
properly
current-limiting, time-delay fuses. Time-delay 10
Simplifies and improves blackout prevention
seconds (minimum) at 500% of rated current.
(selective coordination)
Dual-element fuses can be applied in circuits
Specifications:
subject to temporary motor overloads and surge
Ratings
currents to provide both high performance
short-circuit and overload protection
Volts
The overload element provides protection
250Vac
against low level overcurrent of overloads and
125Vdc (110-200A)
will hold on inrush current which is five times
greater than the amp rating of the fuse for a
250Vdc (225-600A)
minimum of ten seconds
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
CEFRN-R Class RK5 250Vac, 125/250Vdc
Technical Data 1020
70-600A, dual element, time-delay fuses
Effective February 2016
Dimensions - in:
5.88
1.06
70 to 100A
7.13
1.56
110 to 200A
8.63
0.09
2.38 0.02
225 to 400A
10.38
0.09
2.88 0.02
450 to 600A
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
Amp size of fuse block or
Fuse size disconnect switch Catalog no. (pairs)
65 to 100A No.2641-R*
400A
110 to 200A No.242-R*
65 to 100A No.2661-R*
110 to 200A 600A No.2662-R*
225 to 400A 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.
2
Eaton.com/bussmannseries