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