POWR-GARD® Fuse Datasheet
.14
KLKD SERIES 10x38 FUSES
600 VAC • 600 VDC •
1
/
-30 A • Fast Acting
10
Description
The KLKD fuse series is fast-acting with a high DC voltage
rating. This family of Midget style fuses (10 x 38 mm) is used
in solar combiner boxes and in circuits with DC fault currents
up to 50,000 amperes. KLKD fuses are available in standard
and board-mount configurations.
In addition, the KLKD series has been designed to meet
both the UL and IEC photovoltaic fuse standards.
Littelfuse offers a wide range of ampere ratings to match
specific requirements in a variety of applications.
Features/Benefits
• Designed to UL and IEC photovoltaic specifications
• 1
/10 -30 A ratings available
• 50 kA DC Voltage Interrupting Rating (
• Both
standard and board-mount configurations available
1
/10 -30 A)
• 1-5 A meets UL1741 GFDI requirements
Applications
• Combiner boxes
• Inverters
• Power supplies
• Desktop meters
• 600 V circuit protection
Specifications
Voltage Rating: 60 0 VAC/ VDC
Amperage Rating:
Interrupting Ratings: AC: 100 kA
DC:
Material: Body: Melamine
Caps: Copper Alloy
Operating Temperature: See Rerating Cur ve
Approvals:
2-25 A IEC 60269-6
(VDE Approved to Cert: 40033094)
UL 248-14 Listed (File: E10480)
(
CE Certified
Environmental: RoHS Compliant
Country of Origin: Mexico
1
/10, 1/8, 2/10, 1/4, 3/10, 1/2, 3/4, 1, 11/2, 2, 21/2, 3,
1
3
/2, 4, 5, 6, 7, 8, 9,10, 12, 15, 20, 25, 30
1
/10-30: 10 kA (UL 2579 )
1
/10-30: 50 kA (UL 248-14)
1
/10-30 A UL 2579 Listed (File: E339112)
CSA Certified (
1
/10-30 A Ferrule Style Only)
File: LR29862)
Ordering Information
SERIES AMP
KLKD 1/8 FERRULE KLK D.125 KLK D.125 T
KLKD 5 FERRULE KLKD005 KLK D00 5.T
KLKD 30 FERRULE KLKD030 KL KD03 0.T
KLKD 30 PCB TABS KLKD030R KLKD030.HXR
MOUNTING
METHOD
CATALOG
NUMBER
ORDERING
NUMBER
Dimensions Inches (mm)
PCB VersionFerrule Version
1.5 (38.1)
.06 (1.52)
1.53
(38.86)
.02 (.51)
(3.56)
.04
(1.02)
Recommended Fuse Holders
LPSM Dead-Front Series
L60030M Series
L60030MPCB Board Mount Holder
.406
(10.31)
.50 (12.7)
.12 (3.05)
MOUNTING HOLE
DETAIL
Web Resources
.12
.28
.406 (10.31)
(3.05)
Downloadable CAD drawings and other technical
information: Littelfuse.com/klkd
Look for this logo to indicate products that are used in solar applications. Visit our website
Littelfuse.com/solar for the latest updates on approvals, certifications, and new products.
Littelfuse.com © 2013 Littelfuse POWR-GARD® Products
1 of 6
(7.11)
Rev: 070313
POWR-GARD® Fuse Datasheet
KLKD SERIES 10x38 FUSES
Ordering Information
Ferrule Version
CATALOG
NUMBER
KLKD 1/10 KL KD.100T
KLKD 1/8 KL KD.125 T
KLKD 2/10 KLKD.200T
KLKD 1/4 KLKD.250T
KLKD 3/10 KLKD.300T
KLKD ½ KLKD.500T
KLKD 3/4 KLKD.750T
KLKD 1 K LKD 001.T 1 600 100 50 079 458 1019 6 .013 (5.90) • •
KLKD 1 1/2 K LKD 01.5T 1 1/2 600 100 50 079 4581019 7 .013 (5.90) • •
KLKD 2 K LKD0 02.T 2 600 100 50 079 4581019 8 .017 ( 7.71 ) • • •
KLKD 2 1/2 KLKD02.5T 2 1/2 600 100 50 079 4581019 9 .017 (7.7 1) • • •
KLKD 3 KLKD003.T 3 600 100 50 07945 810200 .017 ( 7.71 ) • • •
KLKD 3 1/2 KLKD03.5T 3 1/2 600 100 50 07945 810 214 .017 ( 7.71 ) • • •
KLKD 4 KLKD 004.T 4 600 100 50 0794 5810201 .017 (7.7 1) • • •
KLKD 5 K LKD0 05.T 5 600 100 50 07945810202 .017 ( 7.71 ) • • •
KLKD 6 KLKD006.T 6 600 100 50 07945 810203 .017 ( 7.71 ) • • •
KLKD 7 K LK D0 0 7.T 7 600 100 50 07945810204 .017 (7.7 1) • • •
KLKD 8 KLKD0 08.T 8 600 100 50 07945810205 .017 ( 7.71 ) • • •
KLKD 9 K LKD0 09.T 9 600 100 50 079 45810215 .017 ( 7.71 ) • • •
KLKD 10 KLK D010.T 10 600 100 50 0794 58102 06 .017 ( 7. 71) • • •
KLKD 12 K LKD0 12.T 12 600 100 50 07945810207 .017 ( 7.71) • • •
KL KD 15 K LKD 015.T 15 600 10 0 50 0794581020 8 .017 (7.7 1) • • •
KLKD 20 K LKD0 20.T 20 600 100 50 07945810209 .017 ( 7. 71) • • •
KLKD 25 K LKD0 25.T 25 600 100 50 079 45810210 .017 (7.7 1) • • •
KLKD 30 K LKD0 30.T 30 600 100 50 0 7945810 211 .017 ( 7.71 ) • •
ORDERING
NUMBER
AMP
RATING
1
/10 600 100 50 079 45810189 .013 (5.90) • •
1
/8 600 100 50 07945 810 190 .013 (5.90) • •
2
/10 600 100 50 07945810191 . 013 (5.90) • •
1
/4 600 100 50 079 4581019 2 .013 (5.90) • •
3
/10 600 100 50 0 794 5810193 .013 (5.90) • •
1
/2 600 100 50 07945810194 .013 (5.90) • •
3
/4 600 100 50 0 794 5810195 .013 (5.90) • •
VOLTAGE
RATING
DC & AC AC DC UL VDE CSA
INTERRUPTING
RATING (kA)
UPC
WEIGHT IN
POUNDS
(GRAMS)
AGENCY
APPROVALS
Ordering Information
PCB Version
CATALOG
NUMBER
KLKD 1/10-R KLKD.100HXR
KLK D ½ -R KLKD.500HXR
KLKD 1-R KLKD001.HXR 1 600 100 50 07945812133 • •
KLKD 2 -R KLKD002.HXR 2 600 100 50 07945894349 • •
KLKD 3 -R KLKD003.HXR 3 600 100 50 07945818991 • •
KLKD 4 -R KLKD004.HXR 4 600 100 50 07945811495 • •
KLKD 5 -R KLKD005.HXR 5 600 100 50 07945814859 • •
KLKD 6 -R KLKD006.HXR 6 600 100 50 07945894350 • •
KLKD 8 -R KLKD008.HXR 8 600 100 50 07945894351 • •
KLKD 10 -R KLKD010.HXR 10 600 100 50 07945814860 • •
KLKD 12 -R KLKD012.HXR 12 600 100 50 07945894352 • •
KLKD 15 -R KLKD015.HXR 15 600 100 50 07945894353 • •
KLKD 20 -R KLKD020.HXR 20 600 100 50 07945894354 • •
KLKD 25 -R KLKD025.HXR 25 600 100 50 07945894355 • •
KLKD 30 -R KLKD030.HXR 30 600 100 50 07945894356 • •
ORDERING
NUMBER
AMP
RATING
1
/10 600 100 50 079458148 57 • •
1
/2 600 100 50 07945814858 • •
VOLTAGE
RATING
DC & AC AC DC UL CE
INTERRUPTING
RATING (kA)
UPC
APPROVALS
AGENCY
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2 of 6
Rev: 070313
POWR-GARD® Fuse Datasheet
KLKD SERIES 10x38 FUSES
Electrical Specifications
CATALOG
NUMBER
KLKD 1/10
1
KLKD
/8
2
KLKD
/10
1
KLKD
/4
3
KLKD
/10
KLKD ½
3
KLKD
/4
KLKD 1 1 0.252 0.000094 0.678 0.388 0.273 0.000247 1.8 27 0.008
1
KLKD 1
/2 1 1/2 0.13 4 0.000153 2.890 0.409 0.229 0.000828 13.95 6 280
KLKD 2 2 0.124 0.000145 2.379 0.823 0.606 0.000291 3.919 0.012
1
KLKD 2
/2 2 1/2 0.0989 0.000186 5.142 0.912 0.618 0.000387 8.877 –
KLKD 3 3 0.0773 0.000211 7. 8 2 1 0.957 0.654 0.000449 14.83 5 –
1
KLKD 3
/2 3 1/2 0.0613 0.000249 12 .417 1.12 0.826 0.000471 2 1.0 48 –
KLKD 4 4 0.0511 0.000284 18.9 45 1.367 0.891 0.000507 30.76 0.019
KLKD 5 5 0.0363 0.000347 34.163 1.4 0.938 0.000607 56.514 0.024
KLKD 6 6 0.0261 0.000423 6 2.951 1.516 0.998 0.000735 96.824 0.035
KLKD 7 7 0.0205 0.000505 10 5.14 3 1.57 7 1.0 66 0.000898 168 .578 0.087
KLKD 8 8 0.0194 0.000541 13 0.26 6 1.824 1.205 0.000945 210.5 95 0.656
KLKD 9 9 0.0166 0.000587 16 4. 221 2.208 1.428 0.000992 266.633 –
KLKD 10 10 0.0128 0.000701 278.390 1.893 1.3 0.001200 454.628 211.66 7
KLKD 12 12 0.0103 0.000822 44 5.010 2.296 1.584 0.001455 744 .775 440
KL KD 15 15 0.00782 0.000544 137.333 2.045 1.57 0.001721 351. 24 –
KLKD 20 20 0.0045 0.000826 462.056 2.133 1.59 3 0.006144 1151.18 5 2120
KLKD 25 25 0.003532 0.001007 834.529 2.55 1.93 3 0.002085 174 4.03 3 2085
KLKD 30 30 0.002776 0.001207 1409 3.701 1.983 0.002266 2757 3220
Note: Test Circuit 600 VDC / 20 k A
AMP
RATING
1
/10 85.5 – – 0.780 0.505 0.000047 0.019 –
1
/8 65 – – 0.975 0.659 0.000050 0.010 –
2
/10 30.9 – – 1.2 13 0.773 0.000073 0.032 –
1
/4 22 – – 1. 364 0.870 – – –
3
/10 16.2 – – 1. 519 0.960 0.000101 0.067 –
1
/2 8.16 – – 1. 961 1. 237 0.000141 0 .19 7 –
3
/4 0.402 0.000063 0.234 0.361 0.19 9 0.000170 0.753 –
NOM COLD
RESISTANCE
(ohm)
AVERAGE
MELT TIME
AVERAGE
MELTING I2t
WATTS LOSS
AT 100% RATED
CURRENT (W)
WATTS LOSS
AT 80% RATED
CURRENT (W)
AVERAGE
CLEARING
TIME
TOTAL
CLEARING I2t
(A2 s) 20 kA
TOTAL
CLEARING I2t
(A2 s) 100 kA
Current-Limiting Effects
SHORT CIRCUIT
CURRENT*
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
50,000
60,000
80,000
100,000
*Prospective RMS Symmetrical Amperes Short-Circuit Current
Littelfuse.com © 2013 Littelfuse POWR-GARD® Products
APPARENT RMS SYMMETRICAL CURRENT
FOR VARIOUS FUSE RATINGS
1 1/2 A 12 A 25 A 30 A
240 292 654 722
303 367 823 910
347 420 943 1042
381 463 103 7 1147
411 498 1117 1235
437 530 118 8 1313
460 558 1250 1382
481 583 130 7 14 45
518 628 140 8 15 56
550 667 1496 165 4
605 735 1647 18 20
652 791 1774 1961
3 of 6
Rev: 070313
POWR-GARD® Fuse Datasheet
-60°C -40°C -20°C 0°C 20°C 40°C 60°C 80°C 100°C 120°C 140°C
-76°F -40°F -4°F 32°F 68°F 104°F 140°F 176°F 212°F 248°F 284°F
AMBIENT TEMPERATURE
60
40
20
0
PERCENT OF UPRATING
0
20
40
60
PER
CENT OF DOW
NRATIN
G
KLKD SERIES 10x38 FUSES
Electrical Specification – Agency Requirements
AMPERAGE
RATING
1
/10 -30 Temperature Stabilization 60 Min 60 Max 60 Max 4 Max
100% of Amp
Rating per UL
113% of Amp
Rating per IEC
OPENING TIME (MINUTES)
135% of Amp
Rating per UL
145% of Amp
Rating per IEC
200% of Amp
Rating per UL
Temperature Derating Curve (Temperature of Air Immediately Surrounding Fuse)
Recommended Process and Soldering Parameters
WAVE PARAMETER LE AD F REE RECOMMENDATION
Preheat:
Temperature Minimum: 130˚ C
Temperature Maximum: —
Pre-heat time 75 Seconds Maximum
Solder Pot Temperature 280˚ C Maximum
Solder Dwell Time 270˚ C for 8 Seconds Maximum
Complete Cycle Time 250 Seconds Maximum
Littelfuse.com © 2013 Littelfuse POWR-GARD® Products
(Typical Industry Recommendation)
4 of 6
Rev: 070313
POWR-GARD® Fuse Datasheet
KLKD SERIES 10x38 FUSES
Peak Let Thru Curve
1000000
100000
30A
25A
12A
10000
1-1/2A
PEAK LET- THRU IN AMPERES
1000
100
100 1000 10000 100000 1000000
AVAILABLE FAULT CURRENT
SYMMETRICAL R.M.S. AMPERES
Littelfuse.com © 2013 Littelfuse POWR-GARD® Products
5 of 6
Rev: 070313
POWR-GARD® Fuse Datasheet
TIME CURRENT CURVE
80
0.03
80
0.03
Time Current Curve
3
1/2A
Time Current Curve
80
0.03
80
03
Time Current Curve
80
0.03
80
0.03
KLKD SERIES 10x38 FUSES
Time Current Curve (1/8 - 21/2 A)
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
1000
900
800
700
600
500
500
400
300
200
100
90
80
70
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
1
0.9
0.8
0.7
0.6
0.5
0.4
TIME IN SECONDS
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.01
0.2
0.1
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.5
0.4
0.3
2
1
0.9
0.8
0.7
0.6
1
CURRENT IN AMPERES
Time Current Curve
100
20
10
9876543
- 1/8 A
- 2/10 A
- 1/4 A
- 3/10 A
- 1/2 A
- 3/4 A
- 1 A
- 1-1/2 A
- 2 A
- 2-1/2 A
20
1098765432
90807060504030
1000
900
800
700
600
500
500
400
300
200
100
90
80
70
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
100
90807060504030
0.2
0.1
1000
900
800
700
600
500
400
300
200
100
90
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
TIME IN SECONDS
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0
.
0.02
0.01
0.2
0.1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
2
(3 - 12 A)
20
10
9876543
20
1098765432
90807060504030
- 3 A
-
- 3 1/2 A
- 4 A
- 5 A
- 6 A
- 7 A
- 8 A
- 9 A
- 10 A
- 12 A
300
200
100
90807060504030
1000
900
800
700
600
500
400
300
200
100
90
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.02
0.01
1000
900
800
700
600
500
400
1000
900
800
700
600
500
400
300
200
100
CURRENT IN AMPERES
Time Current Curve
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1000
900
800
700
600
500
400
300
200
100
90
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
TIME IN SECONDS
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.02
0.01
0.1
0.5
0.4
0.3
0.2
2
1
2
1
0.9
0.8
0.7
0.6
CURRENT IN AMPERES
(15 - 25 A)
20
10
9876543
20109876543
2
2
(30 A)
10
9876543
20
20109876543
90807060504030
- 30 A
100
300
200
90807060504030
1000
900
800
700
600
500
400
300
200
100
90
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.02
0.01
1000
900
800
700
600
500
400
1000
900
800
700
600
500
400
300
200
100
Time Current Curve
1000
900
800
700
600
500
400
300
200
100
90807060504030
- 15 A
- 20 A
- 25 A
300
200
100
90807060504030
1000
900
800
700
600
500
400
300
200
100
90
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.02
0.01
1000
900
800
700
600
500
400
0.2
0.1
1000
900
800
700
600
500
400
300
200
100
90
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
TIME IN SECONDS
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.02
0.01
0.2
0.1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
CURRENT IN AMPERES
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Rev: 070313
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