Technical Data 1018
Effective May 2016
Supersedes July 2013
BUSSMANN
SERIES
Fusetron™ 600V Class RK5
FRS-R — 600 Vac/300 Vdc, 65-600 A, dual element, time-delay fuses
Catalog symbol:
•
Features:
•
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.
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
•
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
•
•
•
•
Catalog numbers (amps)
FRS-R-65
FRS-R-70
FRS-R-75
FRS-R-80
FRS-R-90
FRS-R-100
FRS-R-110
FRS-R-125
FRS-R-150
FRS-R-175
FRS-R-200
FRS-R-225
FRS-R-250
FRS-R-300
FRS-R-350
FRS-R-400
FRS-R-450
FRS-R-500
FRS-R-600
Dimensions - in:
A
B
Carton quantity
Amp ratings
65–100
101–200
201–400
401–600
Carton Qty.
1
1
1
1
Amp ratings
65-100
110-200
225-400
450-600
A
7.88
9.63
11.63
13.38
B
1.11
1.61
2.34
2.88
Technical Data 1018
Effective May 2016
Fusetron™ 600 V Class RK5
FRS-R — 600 Vac/300 Vdc, 65-600 A,
dual element, time-delay fuses
Current-Limitation curves
2-Pole
RM60100-2CR
RM60200-2CR
RM60400-2CR
RM60600-2CR
3-Pole
RM60100-3CR
RM60200-3CR
RM60400-3CR
RM60100-3CR
100000
90000
80000
70000
60000
50000
40000
30000
20000
100A
400000
300000
200000
Recommended fuse blocks
Fuse amps
70-100
110-200
225-400
450-600
1-Pole
RM60100-1CR
RM60200-1CR
RM60400-1CR
RM60600-1CR
B
Instantaneous peak let-through current in amps
For additional information on the RM600 volt fuse blocks, see data sheet
No. 10489.
600A
400A
200A
Fuse reducers for class R fuses
Equipment
fuse clips
200 A
400 A
Desired fuse
(case) size
100 A
100 A
200 A
100 A
600 A
200 A
400 A
†
Catalog numbers
(pairs) 600 V
NO.2621-R
NO.2641-R
NO.642-R
NO.2661-R
NO.2662-R
NO.2664-R†
10000
9000
8000
7000
6000
5000
4000
3000
Single reducer only (pair not required).
For additional information on Class R fuse reducers, see data
sheet No. 1118.
A
2000
Time-current curves - average melt
15A
100A
400A
600A
200A
30A
60A
Amp rating
1000
3000
4000
6000
7000
8000
9000
10000
60000
70000
80000
90000
100000
200000
20000
30000
2000
40000
50000
1000
5000
300
Prospective short-circuit current - symmetrical RMS amps
100
Current-limiting effects
Prosp.
S.C.C.
5000
10,000
Let-through current
(apparent RMS symmetrical vs. fuse rating)
100A
3000
4000
4000
5000
5000
5000
5000
6000
6000
6000
7000
7000
7000
8000
9000
9000
200A
4000
5000
6000
7000
7000
8000
8000
9000
9000
10,000
11,000
12,000
12,000
13,000
14,000
16,000
400A
5000
9000
10,000
11,000
12,000
13,000
13,000
14,000
14,000
15,000
17,000
17,000
17,000
18,000
21,000
23,000
600A
5000
10,000
14,000
15,000
17,000
18,000
18,000
19,000
20,000
22,000
23,000
23,000
24,000
25,000
27,000
32,000
10
Time in seconds
15,000
20,000
25,000
30,000
35,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
150,000
1
0.1
200,000
0.01
1000
20
10,000
20,000
100
RMS symmetrical current in amps
2
Eaton.com/bussmannseries
Amp rating
Fusetron™ 600 V Class RK5
FRS-R — 600 Vac/300 Vdc, 65-600 A,
dual element, time-delay fuses
Technical Data 1018
Effective May 2016
The only controlled copy of this Data Sheet is the electronic read-only version located on the Eaton 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. Eaton reserves the right, without notice, to change design or construction
of any products and to discontinue or limit distribution of any products. Eaton 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.
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
Bussmann Division
114 Old State Road
Ellisville, MO 63021
United States
Eaton.com/bussmannseries
© 2016 Eaton
All Rights Reserved
Printed in USA
Publication No. 1018 – SB13729 / APT
May 2016
Eaton, Bussmann and Fusetron are
valuable trademarks of Eaton in the US
and other countries. You are not permitted
to use the Eaton trademarks without prior
written consent of Eaton.
CSA is a registered trademark of the
Canadian Standards Group.
UL is a registered trademark of the
Underwriters Laboratories, Inc.
For Eaton’s Bussmann series
product information,
call
1-855-287-7626
or visit:
Eaton.com/bussmannseries
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