LITTELFUSE KLSR

POWR-GARD® Fuse Datasheet
Class RK1 – KLNR • KLSR Series FUSES
250/600 VAC • Fast-Acting • 1-600 A
Ordering Information
1
2
3
4
5
6
8
10
12
15
20
25
30
35
ampere ratings
40
45
50
60
70
80
90
100
110
125
150
175
200
225
250
300
350
400
450
500
600
600 V
series
amperage
KLSR
90
Catalog Number Ordering Number
KLSR090
KLSR090.V
250 V
series
amperage
KLNR
90
Catalog Number Ordering Number
KLNR090
KLNR090.V
Web Resources
Description
TC Curves, downloadable CAD drawings and other technical
information: w
ww.littelfuse.com/klsr
www.littelfuse.com/klnr
KLSR/KLNR fuses are an economical single element design
providing the safety of an RK1 fuse.
Applications
• Resistance heaters
Peak Let-Thru Curve (600 V)
• Lighting circuits
KLSR
• Non-inductive loads
Features/Benefits
• Extremely Current-Limiting
• Indicating and din mount fuse holders available
Specifications
Voltage Ratings Interrupting Ratings
Ampere Range
Approvals
AC: 250 V (KLNR); 600 V (KLSR)
DC: 125 V (1 – 600 A KLNR);
250 V (1 – 30 A KLSR);
300 V (35 – 600 A KLSR).
AC: 200 kA rms symmetrical
DC: 20 kA
1 – 600 A
AC: S tandard 248-12, Class RK1
UL Listed (File: E81895)
CSA Certified (File: LR29862)
DC: Littelfuse self-certified
Recommended Fuse Holders
LFR60 Series • LFR25 Series
Dimensions
Please refer to the Class R dimensions
www.littelfuse.com
1 of 2
© 2012 Littelfuse POWR-GARD® Products
05549002
Rev: 083012
POWR-GARD® Fuse Datasheet
Class RK1 – KLNR • KLSR Series FUSES
Dimensions
F
G
A
B
D
E
FIGURE
NUMBER
/ –30
1
1 10
35 – 60
1
70 – 100
2
110 – 200
2
225 – 400
2
450 – 600
2
www.littelfuse.com
E
C
F
B
H
C
FIG. 1
AMPS
A
K
D
J
70-600A
FIG. 2
DIMENSIONS INCHES (mm)
SERIES
A
B
C
⁄2 (12.7)
1
5 (127.0)
3
KLNR
3 (76.2)
3
KLNR
2 (50.8)
1
KLSR
D
⁄2 (12.7)
9
⁄4 (19.1)
5
⁄4 (19.1)
5
E
G
H
J
K
⁄8 (9.5)
­—
­—
­—
⁄8 (15.9)
­—
­—
­—
⁄8 (15.9)
­—
­—
­—
⁄16 (14.3)
5
⁄64 (2.0)
5
⁄32 (4.0)
⁄8 (15.9)
13
⁄16 (20.6)
3
⁄32 (2.4)
3
⁄16 (4.8)
5
⁄8 (15.9)
13
⁄16 (20.6)
3
⁄32 (2.4)
3
⁄16 (4.8)
5
⁄8 (15.9)
1 ⁄ 16 (27.0)
3
⁄32 (2.4)
1
⁄4 (6.4)
7
⁄ (3.2)
3
⁄8 (3.2)
3
KLSR
5 ⁄ 2 (139.7)
1 (25.4)
5
KLNR
5 ⁄ (149.2)
1 (25.4)
1⁄
(27.0)
1
KLSR
7 ⁄ 8 (200.0) 11 ⁄ 4 (31.8)
11 ⁄ 16 (27.0) 15 ⁄ 16 (33.3)
1
KLNR
71 ⁄ 8 (181.0)
115 ⁄ 32 (37.3) 119 ⁄ 32 (40.5)
3
KLSR
9 5 ⁄ 8 (244.5) 13 ⁄ 4 (44.5) 115 ⁄ 32 (37.3) 127⁄ 32 (46.8)
3
KLNR
8 5 ⁄ 8 (219.1)
115 ⁄ 16 (49.2) 2 3 ⁄ 32 (53.2)
KLSR
115 ⁄ 8 (295.3) 2 1⁄ 2 (63.5)
KLNR
KLSR
1
F
1
⁄8 (22.2)
­—
⁄ (19.1)
—
1
⁄4 (19.1)
—
1
⁄16 (4.8)
11⁄ 8 (28.6)
—
⁄16 (4.8)
11⁄ 8 (28.6)
1
⁄4 (6.4)
219 ⁄ 32 (65.9)
1
10 3 ⁄ 8 (263.5) 2 1⁄ 2 (63.5)
2 3 ⁄ 8 (60.3) 219 ⁄ 32 (65.9)
13 3 ⁄ 8 (339.7)
213 ⁄ 32 (61.1) 3 3 ⁄ 32 (78.6)
7
8
7
11⁄ 2 (38.1)
2 (50.8)
3 (76.2)
1
16
(27.0)
2 (50.8)
1⁄
3
1
16
2 of 2
­—
­—
⁄ (6.4)
9
⁄
(7.1)
1
⁄4 (6.4)
9
⁄32 (7.1)
1
7
⁄16 (11.1)
9
⁄32 (7.1)
11
⁄16 (17.5)
—
7
⁄16 (11.1)
9
⁄32 (7.1)
11
⁄16 (17.5)
15 ⁄ 8 (41.3)
—
5
⁄8 (15.9)
13
⁄32 (10.3)
15
⁄16 (23.8)
⁄4 (6.4)
15 ⁄ 8 (41.3)
—
5
⁄8 (15.9)
13
⁄32 (10.3)
15
⁄16 (23.8)
1
⁄4 (6.4)
2 (50.8)
—
3
⁄4 (19.1)
17
⁄32 (13.5)
11⁄ 8 (28.6)
1
⁄4 (6.4)
2 (50.8)
—
3
⁄4 (19.1)
17
⁄32 (13.5)
11⁄ 8 (28.6)
8
4
4
32
⁄ (12.7)
2
⁄2 (12.7)
© 2012 Littelfuse POWR-GARD® Products
Rev: 083012