Bussmann KRP-C-SP Data Sheet
LOW-PEAK® Time-Delay Fuses KRP-C
Class L – 600 Volt 601-2000A
Form No. KRP-C-601-2000
Page 1 of 3
BIF Doc #1008
Bussmann
®
11-12-99
A99119
Rev. A
601Ato800A
.38"
2"
2.5"
2.53"
Max.
10.75"
(± 0.09)
8.63"
(± 0.09)
6.75"
5.75"
801A
to
1200A
1350Ato1600A
1800Ato2000A
.5"
2.75"
.44"
2.38"
.38"
2"
3"
3.03"
Max.
3.5"
3.53"
Max.
0.63" (± 0.03)
All Slots and Holes
3.75"
2.5"
2.78"
Max.
Terminal:
Width (± 0.06)
Thickness (± 0.03)
Catalog Symbol: KRP-C-SP
Time-Delay – 4 seconds (minimum) at 500% rated current
Current-Limiting
Ampere Rating: 601 to 2000 Amperes‡
Voltage Rating: 600 Volts AC (or less) 300 Volts DC (or less)
Interrupting Rating: 300,000A RMS Sym. (UL)
Interrupting Rating: 100,000A DC (UL)
Agency Approvals:
UL Listed – Special Purpose
£,
Guide JFHR, File E56412
CSA Certified – (200,000 AIR), Class 1422-02, File 53787
Class L per CSA C22.2, No. 248.10
‡Use KRP-CL for current ratings below 601 amps.
*601-3000A is rated 340 VDC and 50 KAIC.
£Meets all performance requirements of UL Standard 248-10 for Class L fuses.
Ampere Ratings†
Catalog Ctn.
Weight**
Catalog Ctn.
Weight**
Number Qty. Lbs. Kg. Number Qty. Lbs. Kg.
KRP-C-601SP KRP-C-1350SP
KRP-C-650SP KRP-C-1400SP
KRP-C-700SP 1 3.75 1.7 KRP-C-1500SP
1 6.50 2.948
KRP-C-750SP KRP-C-1600SP
KRP-C-800SP KRP-C-1800SP
KRP-C-801SP KRP-C-1900SP 1 8.5 3.85
KRP-C-900SP KRP-C-2000SP
KRP-C-1000SP 1 4.5 2.041
KRP-C-1100SP
KRP-C-1200SP
**Weight per carton.
†Special purpose rating of 300,000 AIR.
Dimensional Data All other tolerances (± 0.02)
General Information:
• All-purpose silver-linked fuse for both overload and shortcircuit protection for high capacity systems (mains and
large feeders).
• Time-delay (minimum of four seconds at five times amp
rating) for close sizing.
• Current-limiting action of the fuse generally affords
considerable reduction in bus bracing.
• Interrupting rating of 300,000 amperes complies with
NEC Sections 110-9 and 230-65 for today’s large capacity
systems.
• O-ring seals maximize pressure build-up during currentlimiting action and ensure filler retention.
• High grade silica-sand filler; accelerates response of fuse to
short-circuits by having quenching effect upon the fuse arc.
• 99.9% pure silver fuselinks. The high conductivity of silver
gives low watt loss and low operating temperature at normal current levels; maximizes total clearing I
2
t fault energy
let-through.
• Selective coordination (blackout prevention).
• Glass melamine tube.
• Silver-plated end bells.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000 VAC, 75-1500 VDC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
11-12-99
A99119
Rev. A
LOW-PEAK® Time-Delay Fuses KRP-C
Class L – 600 Volt 601-2000A
Form No. KRP-C-601-2000
Page 2 of 3
BIF Doc #1008
Bussmann
®
Time-Current Characteristic Curves–Average Melt
Fuseblocks: (601 - 1200 Amps)
Catalog
Number Poles
51215 1
51235 3
No reducers available.
300
100
10
800A
1200A
1600A
2000A
AMPERE
RATING
1
TIME IN SECONDS
.1
.01
1,000
CURRENT IN AMPERES
10,000
100,000
200,000
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