FRN-R-600 [ETC]
Fuse ; 保险丝\n
ETC 
Bus s m a nn
®
Fus e tron®
FRN-R
7 0 -6 0 0 A
Dua l-Ele m e nt, Tim e -De la y Fus e s
Cla s s RK5 – 2 5 0 Volt
Dim e ns iona l Da ta
5.88"
(± 0.062)
1.06" (± 0.008)
70A to 100A
7.13"
(± 0.062)
1.56" (± 0.008)
110A to 200A
8.63"
(± 0.094)
2.06" (± 0.008)
225A to 400A
10.38"
(± 0.094)
2.59" (± 0.008)
450A to 600A
†
Ca ta log Sym bol: FRN-R
Current-Limiting
Dual-Element, Time-Delay – 10 seconds (minimum) at 500%
rated current
Am pe re Ra ting: 70 to 600 Amperes
Volta ge Ra ting: 250 Volts AC (or less)
Inte rrupting Ra ting: 200,000A RMS Sym.
DC Ratings: 20,000 AIC @ 125 VDC 70-400 Amperes
20,000 AIC @250 VDC 401-600 Amperes
Age nc y Approva ls :
Ge ne ra l Inform a tion:
• 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.
UL Listed, Std. 248-12, Class RK5, Guide JDDZ, File E4273
CSA Certified, C22.2 No. 248.12, Class 1422-01, File 53787
• The overload element provides protection against low level
overcurrent of overloads and will hold on inrush current
which is five times greater than the ampere rating of the
fuse for a minimum of ten seconds.
Ca ta log Num be rs
FRN-R-70
FRN-R-75
FRN-R-80
FRN-R-85
FRN-R-90
FRN-R-100
FRN-R-110
FRN-R-125
FRN-R-150
FRN-R-175
FRN-R-200
FRN-R-225
FRN-R-250
FRN-R-300
FRN-R-350
FRN-R-400
FRN-R-450
FRN-R-500
FRN-R-600
—
Fus e Re duc e rs For Cla s s R Fus e s
—
Equipment
Fuse Clips
Desired Fuse
(Case) Size
Catalog Number
(Pairs) 250V
Ca rton Qua ntity a nd We ight
Weight*
200A
100A
100A
200A
100A
200A
400A
No. 2621-R
No. 2641-R
No. 242-R
Ampere
Ratings
Carton
Qty.
Lbs.
1.5
Kg.
400A
70–100
5
1
1
1
0.680
0.349
0.689
1.4
101–200
0.77
1.52
3.0
No. 2661-R
No. 2662-R
No. 2664-R*
201–400
600A
401–600
*Single reducer only (pair not required).
*Weight per carton.
† To obtain information for 0-60 Amps, access BIF # 1019
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000 VAC, 75-1500 VDC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
Form No. FRN-R 70-600
Page 1 of 3
11-1-00
A00115
BIF Doc #1020
Bus s m a nn
®
Fus e tron®
FRN-R
7 0 -6 0 0 A
Dua l-Ele m e nt, Tim e -De la y Fus e s
Cla s s RK5 – 2 5 0 Volt
Fus e bloc ks for Cla s s R Fus e s
(Clip Re ta ining Spring Sta nda rd, Suffix “R”)
Terminal Type (Suffix No.)
Tim e -Curre nt Cha ra c te ris tic Curve s –Ave ra ge Me lt
AMPERE
RATING
Basic
Box Lug w/
300
100
Catalog
Number
R25100-1
—
Clip
CU only
COR
Amps
70
Poles
1
CR
CR
CR
CR
CR
CR
to
2
3
1
1
1
R25100-2
R25100-3
R25200-1
R25400-1
R25600-1
COR
COR
—
100
to 200
to 400
to 600
—
—
10
1
.1
.01
CURRENT IN AMPERES
Form No. FRN-R 70-600
Page 2 of 3
11-1-00
A00115
BIF Doc #1020
®
Bu s s m a n n
Fus e tron®
FRN-R
7 0 -6 0 0 A
Dua l-Ele m e nt, Tim e -De la y Fus e s
Cla s s RK5 – 2 5 0 Volt
Curre nt-Lim ita tion Curve s
The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin
is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right, without notice, to change
design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without notice, any technical information
contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
Form No. FRN-R 70-600
Page 3 of 3
BIF Doc #1020
11-1-00
A00115
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