Littelfuse KLKR User Manual
POWR-GARD® Fuse Datasheet
UL Class CC
class cc fuses
KLDR Series
1
600 VAC/300 VDC • Time-Delay •
/10-30 Amperes
Description
KLDR fuses are time-delay fuses designed to
protect control transformers, so le noids and similar
inductive com ponents with high mag ne tiz ing
currents during the first half-cycle. They provide
ex cel lent protection of motor branch circuits
con tain ing IEC or NEMA rated motor con trol lers
or contactors.
Specications
Voltage Ratings: AC: 600 V
DC: 300 V
Interrupting Ratings: AC: 200 kA rms symmetrical
DC: 20 kA
Ampere Range:
Approvals: AC: Standard 248-4, Class CC
UL Listed
(File No. E81895)
CSA Certified
(File No. LR29862)
DC: Littelfuse self-certified
1
/10 – 30 A
1
/10-30 A
1
/10-30 A
Ordering Information
ampere r atings
1
10
/
1
8
/
15
100
/
3
16
/
2
10
/
1
4
/
3
10
/
4
10
/
1
2
/
series amper age
6
10
/
3
4
/
8
10
/
1 2 1/
8
1 1/
4
1 1/
10
1 4/
2
1 1/
10
1 6/
1 8/
10
4 1/
2
2 5 12
2 1/
2 8/
4
2
10
10
5 6/
6 17 1/
4
6 1/
3 7 25
3 2/
3 1/
10
2
2
7 1/
8 —
4 9 —
cata log
number
KLDR 10 KLDR010 KL DR0 10 .T
Web Resources
For additional information, visit:
www.littelfuse.com/kldr
Recommended Fuseholders
LPSC Series
L60030C Series
10
15
2
20
30
system
number
KLKR Series
600 VAC/300 VDC • Fast-Acting •
Description
KLKR Series Class CC fuses are fast-acting
fuses intended for general purpose branch circuit
protection. Their compact size, fast-acting
overload response, and highly current-limiting
design make them ideal for use in OEM
equipment and control panels.
Specications
Voltage Ratings: AC: 600 V
DC: 300 V
Interrupting Ratings: AC: 200 kA rms symmetrical
DC: 20 kA
Ampere Range:
Approvals: AC: Standard 248-4, Class CC
UL Listed
(File No. E81895)
CSA Certified
(File No. LR29862)
DC: Littelfuse self-certified
1
/10 – 30 A
1
/10-30 Amperes
1
/10-30 A
1
/10-30 A
Ordering Information
ampere r atings
1
10
/
1
8
/
2
10
/
1
4
/
3
10
/
series amperage
1
1 1/
2
/
3
4
/
1
2
2
2 1/
6 12
3 7 15
2
3 1/
8 20
4 9 25
2 5 10 30
cata log
number
KLKR 12 KLKR012 KLKR012.T
Web Resources
For additional information, visit:
www.littelfuse.com/klkr
Recommended Fuseholders
LPSC Series
L60030C Series
system
number
1
©June 2011 Littelfusewww.littelfuse.com
POWR-GARD® Fuse Datasheet
(47.8)
.25
UL Class CC
class cc/cd dimensions and current-limiting effects
Dimensions in inches (mm)
1.50
(38.1)
0-30 A
.50
(12.7)
(6.4)
.125
(3.2)
.41
(10.3)
Current-Limiting Effects of CCMR (600 V) fuses
short circuit
current*
5,000
10,000
15,000
20,000
25,000
30,000
2 a 4 a
160 190 330 370 525 600 625 750
180 220 400 440 600 700 725 875
200 250 430 480 675 775 800 950
220 260 460 520 720 825 850 1,000
230 280 480 550 750 850 900 1, 0 50
240 290 500 570 800 900 950 1,125
appa re nt r ms symmetrica l current for Various f use rat ings
1
4
6
⁄
a
.850
(21.6)
35-60 A
1.880
10 a 12 a 15 a 20 a 30 a
35,000
40,000
50,000
60,000
80,000
100,000
150,000
200,000
*Prospec tive RMS Symmetrical Amperes Short-Circuit Current
Note: Data Derived from Pe ak Let-Thru Curves
245 300 520 590 825 925 975 1,17 5
255 310 550 600 850 975 1,000 1, 200
260 330 570 640 875 1,000 1,100 1,3 00
280 340 600 670 900 1,0 50 1,125 1, 350
300 360 625 700 1,000 1,125 1, 200 1, 4 00
310 380 650 750 1,0 5 0 1, 200 1,2 50 1,500
340 420 700 800 1,150 1, 300 1,400 1, 600
350 440 750 850 1,2 0 0 1, 4 0 0 1, 4 5 0 1,75 0
2
©June 2011 Littelfusewww.littelfuse.com
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