BUSSMANN
Effective May 2016
Supersedes August 2013
Technical Data 1017
SERIES
Fusetron™ 600 V Class RK5, FRS-R — 600 Vac/300 Vdc,
1/10-60 A, dual element, time-delay fuses
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Dual-element fuses can be applied in circuits
Catalog symbol:
subject to temporary motor overloads
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FRS-R-(amp) (non-indicating)
FRS-R-(amp)ID (indicating)
and surge currents to provide both high
performance short-circuit and overload
protection
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Offers a 10-second time delay at 5 times the
rated current
Description:
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Advanced protection, energy efficient
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.
Class RK5 dual element, current-limiting,
time-delay fuses with optional open fuse
indication on select ratings
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Time-delay – 10 second (minimum) at 500%
of rated current
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Provides current limitation to help protect
downstream components from high fault
currents.
Specifications:
Ratings
Gives motor running back-up protection to
motors without extra costs.
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Volts
•ꢀ 600 Vac, 300 Vdc (1/10-30 A)
•ꢀ 600 Vac, 250 Vdc (35-60 A)
Dimensions - in:
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Amps — 1/10-60 A
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Interrupting rating
•ꢀ 200 kA Vac RMS Sym
•ꢀ 20 kA Vdc
Catalog numbers (amps) — Non-indictaing fuses
Agency information:
FRS-R-1/10
FRS-R-1/8
FRS-R-1 8/10
FRS-R-2
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, UL® Listed, Std. 248-12, Class RK5, Guide
JDDZ, File E4273
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FRS-R-15/100
FRS-R-2/10
FRS-R-1/4
FRS-R-2 1/4
FRS-R-2 1/2
FRS-R-2 8/10
FRS-R-3
CSA® Certified, C22.2 No. 248.12, Class
1422-02, File 53787
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FRS-R-3/10
FRS-R-4/10
FRS-R-1/2
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CE
FRS-R-3 2/10
FRS-R-3 1/2
FRS-R-4
Features:
FRS-R-6/10
FRS-R-8/10
FRS-R-1
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Dual-element feature provides the best
FRS-R-4 1/2
FRS-R-5
time-delay performance, allowing closer
sizing and superior protection of motors and
transformers
FRS-R-1 1/8
FRS-R-1 1/4
FRS-R-1 4/10
FRS-R-1 1/2
FRS-R-1 6/10
FRS-R-5 6/10
FRS-R-6*
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Closer sizing allows for smaller fuses and
less costly switches
FRS-R-6 1/4*
FRS-R-7*
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Class RK5 fuses with a 200 kA interrupting
rating for use in a broad range of
applications
FRS-R-7 1/2*
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* Open fuse indication available by inserting the sufix
“ID.” E.g., FRS-R-15ID.
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Provides motor overload, ground fault, and
short-circuit protection
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Helps protect motors against burnout from
overloads and single-phasing when sized
properly