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7
KLPC Series POWR-PRO®Class L Fuses
600 V A C■Time-Delay■200 – 6000 Amperes
SPECIFICATIONS
Voltage Ratings: AC: 600 V olts
DC: 480 Volts
Interrupting Ratings: AC: 200,000 amperes rms symmetrical
300,000 amperes rms symmetrical
(Littelfuse self-certified).
DC:20,000 amperes
Ampere Range: 200 – 6000 amperes
Approvals: AC: Standard 248-10, Class L
UL Listed 601 – 6000 amps
(File No: E81895)
UL Recognized 200 – 600 amps
(File No: E71611)
CSA Certified 200 – 6000 amps
(File No: LR29862)
QPL Federal Specifications WF-1814
700 – 6000 amps
DC:Littelfuse self-certified
AMPERE RATINGS
200 500 800 1350 2000 3500
250 600 900 1400 2100 4000
300 601 1000 1500 2200 4500
350 650 1100 1600 2300 5000
400 700 1200 1800 2500 6000
450 750 1300 1900 3000
Example part number (series & amperage): KLPC 1000
KLPC series POWR-PRO
®
fuses provide ideal overcurrent
protection for circuits from 200 through 6000 amperes.KLPC
series POWR-PRO
®
fuses specification-grade construction
and performance meet or exceed the most stringent project
specifications: 99.9% pure silver links, silver-plated copper
end bells, glass-reinforced melamine bodies, O-ring seals
between body and end bells, and granular quartz fillers.
KLPC series POWR-PRO®fuses are the only UL listed Class
L fuses that provide a minimum of ten seconds time delay at
500% rated current and are also as current limiting as the
fastest Class L fuse on the market.On average, the peak letthrough currents of KLPC series fuses are 10% less than any
other “time-delay”Class L fuse.
APPLICATIONS
Service switches
Switchboard mains and feeders
Bolted pressure contact switches
Motor control center mains
Large motor branch circuits
UL Listed series-rated protection for molded case circuit
breaker panelboards and loadcenters.(See panelboard
manufacturers’literature for recommended fuse rating.)
Primary and secondary protection for transformers
Protection of power circuit breakers
FEATURES AND BENEFITS
■
Eliminate unnecessary downtime — KLPC POWR-
PRO
®
series fuses’ time delay withstands system surges
and keeps your circuits in service.
■
Best protection for system components — Maximum
current limitation means less equipment and system
damage when short circuits occur. Reduced damage
means that electrical service can be restored quickly,
reducing costly downtime, and often permitting equipment
repair rather than replacement.
■
Coordinates with other system components — KLPC
series fuses provide maximum coordination with fuses and
circuit breakers both on the line and load side of the fuses.
See the Fuseology section of this catalog for additional
information.
■
Eliminate need to oversize fuses — This may permit the
use of smaller less expensive switches, and, since the
lower rated fuses are more current limiting, equipment
receives even better protection.
■
300kA Interrupting Rating — Littelfuse self-certified to
300,000 amperes as standard. Meets future trend towards
higher available short circuit currents.
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KLPC Series POWR-PRO®Class L Fuses
600 V A C■Time-Delay■200 – 6000 Amperes
AMPERES
200 – 800 1
3-3/4 5-3/4 6-3/4 — — 8-5/8 — — 2 2-1/2 3/8 5/8 x 1-1/8 —
(95.3) (146.1) (171.5) (219.1) (50.8) (63.5) (9.5) (15.9) x (28.6)
801 – 1200 2
3-3/4 5-3/4 6-3/4 9-1/4 9-1/2 10-3/4 — — 2 2-1/2 3/8 5/8 x 3/4 5/8 x 1- 1/8
(95.3) (146.1) (171.5) (235.0) (241.3) (273.1) (50.8) (63.5) (9.5) (15.9) X (19.1) (15.9) X (28.6)
1201 – 1600 2
3-3/4 5-3/4 6-3/4 9-1/4 9-1/2 10-3/4 — — 2-3/8 3 7/16 5/8 X 3/4 5/8 X 1- 1/8
(95.3) (146.1) (171.5) (235.0) (241.3) (273.1) (60.3) (76.2) (11.1) (15.9) X (19.1) (15.9) X (28.6)
1601 – 2000 2
3-3/4 5-3/4 6-3/4 9-1/4 9-1/2 10-3/4 — — 2-3/4 3-1/2 1/2 5/8 x 3/4 5/8 x 1- 1/8
(95.3) (146.1) (171.5) (235.0) (241.3) (273.1) (69.9) (88.9) (12.7) (15.9) x (19.1) (15.9) x (28.6)
2001 – 2500 3
4 5-3/4 6-3/4 9-1/4 9-1/2 10- 3/4 1-5/8 1-3/4 3-1/2 5 3/4 5/8 X 3/4 5/8 X 1- 1/8
101.6) (146.1) (171.5) (235.0) (241.3) (273.1) (41.3) (44.5) (88.9) (127.0) (19.1) (15.9) x (19.1) (15.9) x (28.6)
2501 – 3000 3
4 5-3/4 6-3/4 9-1/4 9-1/2 10- 3/4 1-5/8 1-3/4 4 5 3/4 5/8 x 3/4 5/8 x 1- 1/8
(101.6) (146.1) (171.5) (235.0) (241.3) (273.1) (41.3) (44.5) (101.6) (127.0) (19.1) (15.9) x (19.1) (15.9) x (28.6)
3001 – 4000 4
4 5-3/4 6-3/4 9-1/4 9-1/2 10- 3/4 1-3/4 3-1/4 4-3/4 5-3/4 3/4 5/8 x 1-3/8 5/8 x 1-3/8
(101.6) (146.1) (171.5) (235.0) (241.3) (273.1) (44.5) (82.6) (120.7) (146.1) (19.1) (15.9) x (34.9) (15.9) x (34.9)
4001 – 5000 5
4 5-3/4 — 9-1/4 — 10-3/4 1-5/8 3-1/4 5-1/4 7-1/8 1 5/8 DIA. —
(101.6) (146.1) (235.0) (273.1) (41.3) (82.6) (133.4) (181.0) (25.4) (15.9)
5001 – 6000 5
4 5-3/4 — 9-1/4 — 10-3/4 1-5/8 3-1/4 5-3/4 7-1/8 1 5/8 DIA. —
(101.6) (146.1) (235.0) (273.1) (41.3) (82.6) (146.1) (181.0) (25.4) (15.9)
ABCDEFGHJKL M N
FIG.
NO.
DIMENSIONS IN INCHES (mm in parentheses)
B
C
J
F
M
FIG.1
A
ABC
J
DEF
N
M
FIG.2
DEF
ABC
G
H
N
M
J
FIG. 3
BD
G
AF
H
J
M
FIG. 5
N
M
G
DE
F
ABC
H
J
FIG. 4
K
L
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KLPC Series POWR-PRO®Class L Fuses
600 V A C■Time-Delay■200 – 6000 Amperes
* Prospective RMS Symmetrical
Amperes Short-Circuit Current
Note: Data derived from Peak
Let-Thru Curves
Current-Limiting
Effects of KLPC
(600V) fuses
2000
3000
4000
6000
8000
10000
20000
30000
40000
60000
80000
100000
200000
100
200
300
400
600
800
1000
100
200
300
400
600
800
1000
2000
3000
4000
6000
8000
10000
20000
30000
40000
60000
80000
100000
200000
300000
400000
600000
800000
1000000
6000A
5000A
4000A
3000A
2000A
1600A
1200A
800A
PEAK LET-THRU IN AMPERES
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
Short Circuit Apparent RMS Symmetrical Current for various fuse ratings
Current*
800A 1200A 1600A 2000A 3000A 4000A 5000A 6000A
5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000
10,000 8,800 10,000 10,000 10,000 10,000 10,000 10,000 10,000
15,000 10,500 13,500 15,000 15,000 15,000 15,000 15,000 15,000
20,000 12,000 15,000 19,000 20,000 20,000 20,000 20,000 20,000
25,000 13,000 16,000 21,000 24,000 25,000 25,000 25,000 25,000
30,000 14,000 18,000 23,000 26,000 30,000 30,000 30,000 30,000
35,000 15,000 19,000 24,000 27,000 32,000 35,000 35,000 35,000
40,000 16,000 20,000 25,000 28,000 34,000 40,000 40,000 40,000
50,000 17,000 22,000 27,000 31,000 37,000 42,500 50,000 50,000
60,000 18,000 24,000 29,000 34,000 40,000 46,000 52,000 60,000
80,000 20,000 26,000 32,000 37,000 44,000 51,000 57,000 70,000
100,000 21,000 27,000 34,000 40,000 46,000 57,000 65,000 75,000
150,000 23,000 31,000 38,000 44,000 54,000 67,000 75,000 87,000
200,000 24,000 34,000 42,000 46,000 57,000 70,000 80,000 95,000
1000
800
600
400
300
200
100
80
60
40
30
20
10
8
6
4
3
2
1
.8
.6
.4
.3
.2
.1
.08
.06
.04
.03
.02
.01
2000
3000
4000
6000
8000
10000
20000
30000
40000
60000
80000
100000
200000
300000
400000
600000
800000
1000000
80
100
200
300
400
600
800
1000
50
800A
1200A
1600A
2000A
2500A
3000A
3500A
4000A
5000A
6000A
TIME IN SECONDS
CURRENT IN AMPERES
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