Technical Data 1017
Effective July 2023
Supersedes October 2019
Fusetron™ 600 V Class RK5 FRS-R — 600 Vac/300 Vdc,
1/10-60 A, dual element, time-delay fuses
Catalog symbols:
•
FRS-R-(amp) (non-indicating)
•
FRS-R-(amp)ID (indicating)
Description:
Advanced protection, energy efficient Class RK5
dual-element, current-limiting, time-delay fuses
with optional open fuse indication on select
ratings. Time-delay — 10 second (minimum) at
500% of rated current.
Catalog numbers (amps)
FRS-R-1/10
FRS-R-1-8/10
FRS-R-1/8
FRS-R-2
FRS-R-15/100
FRS-R-2-1/4
FRS-R-2/10
FRS-R-2-1/2
FRS-R-1/4
FRS-R-2-8/10
FRS-R-3/10
FRS-R-3
FRS-R-4/10
FRS-R-3-2/10
FRS-R-1/2
FRS-R-3-1/2
FRS-R-6/10
FRS-R-4
FRS-R-8/10
FRS-R-4-1/2
FRS-R-1
FRS-R-5
FRS-R-1-1/8
FRS-R-5-6/10
FRS-R-1-1/4
FRS-R-6*
FRS-R-1-4/10
FRS-R-6-1/4*
FRS-R-1-1/2
FRS-R-7*
FRS-R-1-6/10
FRS-R-7-1/2*
* Open fuse indication available by inserting the suffix “ID.”
E.g., FRS-R-15ID. 35 to 60 amp indicating fuses are not
Vdc rated.
Carton quantity
•
•
Volts
• 600 Vac, 300 Vdc (1/10-30 A)
•
600 Vac, 250 Vdc* (35-60 A)
•
Amps — 1/10-60 A
•
Interrupting rating
• 200 kA Vac RMS Sym
•
20 kA Vdc
•
Dual-element feature provides the best timedelay performance, allowing closer sizing and
superior protection of motors and transformers
•
Closer sizing allows for smaller fuses and less
costly switches
•
Class RK5 fuses with a 200 kA interrupting rating for use in a broad range of applications
•
Provides motor overload, ground fault, and
short-circuit protection
•
Helps protect motors against burnout from
overloads and single-phasing when sized properly
•
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
•
Offers a 10-second time delay at 5 times the
rated current
•
The time-delay feature makes it possible to use
fuse amp ratings that are much smaller than
those of non-time delay fuses. Considerable
cost savings occur by permitting the use of
smaller size switches, panels, and fuses themselves.
•
Provides current limitation to help protect downstream components from high fault currents.
•
Gives motor running back-up protection to
motors without extra costs.
* Indicating versions not Vdc rated.
Agency Information
•
cULus Listed file No. JDDZ.E4273
• UL 248-12 – Class RK5 Fuses
•
•
CSA C22.2 No. 248.12 – Class RK5 Fuses
10
Features and benefits
Specifications:
Ratings
FRS-R-8*
FRS-R-9*
FRS-R-10*
FRS-R-12*
FRS-R-15*
FRS-R-17-1/2*
FRS-R-20*
FRS-R-25*
FRS-R-30*
FRS-R-35*
FRS-R-40*
FRS-R-45*
FRS-R-50*
FRS-R-60*
CE
Technical Data 1017
Fusetron™ 600 V Class RK5 FRS-R — 600 Vac/300 Vdc,
1/10-60 A, dual element, time-delay fuses
Effective July 2023
Time-current curves - average melt
Recommended fuse blocks
Amps
30
60
Catalog no.
1-Pole
RM60030-1_
RM60060-1_
1/10 to 8 amps
2-Pole
RM60030-2_
RM60060-2_
3-Pole
RM60030-3_
RM60060-3_
AMP RATING
For additional information on the 600 volt fuse blocks, see data
sheet no. 10489.
Fuse reducers for Class R fuses
Catalog no. (pairs)
600 V
NO.663-R
NO.216-R
NO.616-R
NO.626-R
For additional information on Class R fuse reducers, see data sheet
no. 1118.
Dimensions — in
5.5"
(±0.031)
5"
(±0.031)
TIME IN SECONDS
Desired fuse (case)
Equipment fuse clips size
60 A
30 A
30 A
100 A
60 A
200 A
60 A
1.06" (±0.008)
0.81" (±0.008)
35 to 60A
1/10 to 30A
CURRENT IN AMPS
2
Eaton.com/bussmannseries
Technical Data 1017
Fusetron™ 600 V Class RK5 FRS-R — 600 Vac/300 Vdc,
1/10-60 A, dual element, time-delay fuses
Time-current curves - average melt
Effective July 2023
Current-limitation curves
10 to 60 amps
B
400000
300000
AMP RATING
AMP RATING
INSTANTANEOUS PEAK-LET-THROUGH CURRENT IN AMPS
200000
100000
90000
80000
70000
60000
50000
40000
30000
20000
60A
10000
9000
8000
7000
6000
30A
5000
4000
3000
A
TIME IN SECONDS
2000
RMS SYMMETRICAL CURRENT IN AMPS
Current-limiting
effects
A-B = ASYMMETRICAL AVAILABLE PEAK (2.3 X SYM RMS AMPS)
Prosp. S.C.C.
—
5000
10,000
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
200,000
200000
60000
70000
80000
90000
100000
50000
30000
40000
20000
6000
7000
8000
9000
10000
5000
3000
4000
2000
1000
1000
Let-through current
(apparent RMS symmetrical vs. fuse rating)
30 A
60 A
1000
1000
1000
2000
1000
2000
2000
2000
2000
2000
2000
3000
2000
3000
2000
3000
2000
3000
2000
3000
3000
4000
3000
4000
3000
4000
3000
4000
3000
5000
4000
6000
CURRENT IN AMPS
Eaton.com/bussmannseries
3
Technical Data 1017
Fusetron™ 600 V Class RK5 FRS-R — 600 Vac/300 Vdc,
1/10-60 A, dual element, time-delay fuses
Effective July 2023
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
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Cleveland, OH 44122
Eaton.com
Bussmann Division
114 Old State Road
Ellisville, MO 63021
United States
Eaton.com/bussmannseries
© 2023 Eaton
All Rights Reserved
Printed in USA
Publication No. 1017
July 2023
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