鈦?/div>
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45
50
60
70
80
90
100
110
125
150
175
200
225
250
300
350
400
450
500
600
* LLSRK Only.
Example part number (series & amperage): LLNRK 450
RECOMMENDED FUSE BLOCKS
LR250 series (LLNRK Series)
LR600 series (LLSRK Series)
Refer to Fuse Block section of this catalog for additional
information.
Littelfuse LLNRK and LLSRK series POWR-PRO
廬
fuses
provide superior overload and short circuit protection for
service entrance, main, feeder and general-purpose branch
circuits up to 600 amperes.
LLNRK/LLSRK series fuses can be installed in existing Class
H fuse blocks to upgrade systems containing lower interrupt-
ing rating Class H one-time or renewable fuses.
FEATURES/BENEFITS
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Extremely current limiting 鈥?/div>
Reduces damage to circuits
and equipment under short-circuit conditions. Stops
damaging short circuits faster than any mechanical
protective device.
300kA Interrupting Rating 鈥?/div>
Littelfuse self-certified to
300,000 amperes as standard. Meets future trend towards
higher available short circuit currents.
Reduced costs 鈥?/div>
Current limiting design often permits
use of readily available, less costly equipment. Low
resistance design reduces power consumption and utility
bills.
Excellent time delay 鈥?/div>
True dual-element construction,
with separate non-fatiguing thermally-reversible spring-
loaded thermal overload element, withstands repeated
surges within rated time delay without opening needlessly.
Eliminates needless downtime caused by power surges or
equipment demands.
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APPLICATIONS
All general-purpose circuits
Motors
Transformers
Solenoids
Fluorescent lighting
All system components with high in-rush currents
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