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PDF LLNRK Data sheet ( Hoja de datos )

Número de pieza LLNRK
Descripción LLNRK/LLSRK Series POWR-PRO Class RK1
Fabricantes Littelfuse 
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No Preview Available ! LLNRK Hoja de datos, Descripción, Manual

LLNRK/LLSRK Series POWR-PRO® Class RK1
250/600 VAC s Dual-Element, Time-Delay s 1/10 600 Amperes
SPECIFICATIONS
Voltage Ratings: AC: 250 Volts (LLNRK)
600 Volts (LLSRK)
DC: 125 Volts (LLNRK)
300 Volts (LLSRK)
Interrupting Ratings:
AC: 200,000 amperes rms symmetrical
300,000 amperes rms symmetrical
(Littelfuse self-certified)
DC: 20,000 amperes
Ampere Range: 1/10 600 amperes
Approvals:
AC: Standard 248-12, Class RK1
UL Listed (File No: E81895)
CSA Certified (File No: LR29862)
QPL: Federal Specification No.WF-1814
DC: Littelfuse self-certified
AMPERE RATINGS
110
15100
210
1 *
4
3
10
4
10
12
6 10
8
10
1
118
114
1410
1610
1810
2
214
212
2810
3
3210
312
4
412
5
5610
6
* LLSRK Only.
614
7
8
9
10
12
15
1712
20
25
30
35
40
45
50
60
70
80
90 300
100 350
110 400
125 450
150 500
175 600
200
225
250
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® 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.
APPLICATIONS
All general-purpose circuits
Motors
Transformers
Solenoids
Fluorescent lighting
All system components with high in-rush currents
FEATURES/BENEFITS
s Extremely current limiting Reduces damage to circuits
and equipment under short-circuit conditions. Stops
damaging short circuits faster than any mechanical
protective device.
s 300kA Interrupting Rating Littelfuse self-certified to
300,000 amperes as standard. Meets future trend towards
higher available short circuit currents.
s Reduced costs Current limiting design often permits
use of readily available, less costly equipment. Low
resistance design reduces power consumption and utility
bills.
s Excellent time delay 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.
12

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