KLPC Series POWR-PRO
®
Class L Fuses
600 VAC
s
Time-Delay
s
200 – 6000 Amperes
SPECIFICATIONS
Voltage Ratings:
AC: 600 Volts
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 let-
through currents of KLPC series fuses are 10% less than any
other “time-delay” Class L fuse.
FEATURES AND BENEFITS
s
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.
s
s
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
s
s
7
KLPC Series POWR-PRO
®
Class L Fuses
600 VAC
s
Time-Delay
s
200 – 6000 Amperes
J
J
J
H
C B A
F
C B A
D E F
C B A
D E F
M
N
M
N
M
G
FIG.1
FIG.2
FIG. 3
J
H
J
H
C B A
D E F
D B
A F
L
N
M
K
G
G
M
FIG. 4
FIG. 5
AMPERES
200 – 800
801 – 1200
1201 – 1600
1601 – 2000
2001 – 2500
2501 – 3000
3001 – 4000
4001 – 5000
5001 – 6000
FIG.
NO.
1
2
2
2
3
3
4
5
5
DIMENSIONS IN INCHES (mm in parentheses)
A
3-3/4
(95.3)
3-3/4
(95.3)
3-3/4
(95.3)
3-3/4
(95.3)
4
101.6)
B
C
D
—
E
—
F
8-5/8
(219.1)
G
—
—
—
—
1-5/8
(41.3)
1-5/8
(41.3)
1-3/4
(44.5)
1-5/8
(41.3)
1-5/8
(41.3)
H
—
—
—
—
1-3/4
(44.5)
1-3/4
(44.5)
3-1/4
(82.6)
3-1/4
(82.6)
3-1/4
(82.6)
J
2
(50.8)
2
(50.8)
2-3/8
(60.3)
2-3/4
(69.9)
3-1/2
(88.9)
K
2-1/2
(63.5)
2-1/2
(63.5)
3
(76.2)
3-1/2
(88.9)
L
3/8
(9.5)
3/8
(9.5)
7/16
(11.1)
1/2
(12.7)
M
5/8 x 1-1/8
(15.9) x (28.6)
5/8 x 3/4
(15.9) X (19.1)
5/8 X 3/4
(15.9) X (19.1)
5/8 x 3/4
(15.9) x (19.1)
5/8 X 3/4
(15.9) x (19.1)
5/8 x 3/4
(15.9) x (19.1)
5/8 x 1-3/8
(15.9) x (34.9)
5/8 DIA.
(15.9)
5/8 DIA.
(15.9)
N
—
5/8 x 1- 1/8
(15.9) X (28.6)
5/8 X 1- 1/8
(15.9) X (28.6)
5/8 x 1- 1/8
(15.9) x (28.6)
5/8 X 1- 1/8
(15.9) x (28.6)
5/8 x 1- 1/8
(15.9) x (28.6)
5/8 x 1-3/8
(15.9) x (34.9)
—
—
5-3/4
6-3/4
(146.1) (171.5)
5-3/4
6-3/4
9-1/4
9-1/2 10-3/4
(146.1) (171.5) (235.0) (241.3) (273.1)
5-3/4
6-3/4
9-1/4
9-1/2 10-3/4
(146.1) (171.5) (235.0) (241.3) (273.1)
5-3/4
6-3/4
9-1/4
9-1/2 10-3/4
(146.1) (171.5) (235.0) (241.3) (273.1)
5-3/4
6-3/4
9-1/4
9-1/2 10- 3/4
(146.1) (171.5) (235.0) (241.3) (273.1)
5
3/4
(127.0) (19.1)
4
5-3/4
6-3/4
9-1/4
9-1/2 10- 3/4
(101.6) (146.1) (171.5) (235.0) (241.3) (273.1)
4
5-3/4
6-3/4
9-1/4
9-1/2 10- 3/4
(101.6) (146.1) (171.5) (235.0) (241.3) (273.1)
4
(101.6)
5-3/4
(146.1)
—
—
9-1/4
(235.0)
9-1/4
(235.0)
—
—
10-3/4
(273.1)
10-3/4
(273.1)
4
5
3/4
(101.6) (127.0) (19.1)
4-3/4
5-3/4
3/4
(120.7) (146.1) (19.1)
5-1/4
(133.4)
5-3/4
(146.1)
7-1/8
1
(181.0) (25.4)
7-1/8
1
(181.0) (25.4)
4
5-3/4
(101.6) (146.1)
8
KLPC Series POWR-PRO
®
Class L Fuses
600 VAC
s
Time-Delay
s
200 – 6000 Amperes
Short Circuit
Current*
5,000
10,000
Current-Limiting
15,000
Effects of KLPC
20,000
25,000
(600V) fuses
30,000
35,000
* Prospective RMS Symmetrical
40,000
Amperes Short-Circuit Current
50,000
Note: Data derived from Peak
60,000
Let-Thru Curves
80,000
100,000
150,000
200,000
Apparent RMS Symmetrical Current for various fuse ratings
800A 1200A 1600A 2000A 3000A 4000A 5000A 6000A
5,000
5,000
5,000
5,000
5,000
5,000
5,000
5,000
8,800 10,000 10,000 10,000 10,000 10,000 10,000 10,000
10,500 13,500 15,000 15,000 15,000 15,000 15,000 15,000
12,000 15,000 19,000 20,000 20,000 20,000 20,000 20,000
13,000 16,000 21,000 24,000 25,000 25,000 25,000 25,000
14,000 18,000 23,000 26,000 30,000 30,000 30,000 30,000
15,000 19,000 24,000 27,000 32,000 35,000 35,000 35,000
16,000 20,000 25,000 28,000 34,000 40,000 40,000 40,000
17,000 22,000 27,000 31,000 37,000 42,500 50,000 50,000
18,000 24,000 29,000 34,000 40,000 46,000 52,000 60,000
20,000 26,000 32,000 37,000 44,000 51,000 57,000 70,000
21,000 27,000 34,000 40,000 46,000 57,000 65,000 75,000
23,000 31,000 38,000 44,000 54,000 67,000 75,000 87,000
24,000 34,000 42,000 46,000 57,000 70,000 80,000 95,000
800A
1200A
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
1600A
2000A
2500A
3000A
3500A
4000A
5000A
6000A
1000000
800000
600000
400000
300000
200000
100000
80000
60000
6000A
5000A
4000A
3000A
2000A
1600A
1200A
800A
PEAK LET-THRU IN AMPERES
40000
30000
20000
10000
8000
6000
4000
3000
2000
1000
800
600
400
300
200
100
100
200
300
400
600
800
1000
2000
3000
4000
6000
8000
10000
20000
30000
40000
60000
80000
100000
200000
TIME IN SECONDS
50
80
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
CURRENT IN AMPERES
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
9
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