Datasheet

POWR-GARD® Fuse Datasheet
Class H – RLN / RLS series fuses & lkn / lks links
250/600 VAC • Renewable • 1-600 A
Guide For Proper Renewable Fuse Usage
Renewable fuses should only be used where shortcircuit currents are known to be less than 10,000
amperes, and where correct replacement of open
links is assured. Renewable fuses and links are not
recommended for new applications.
Still Using Class H Fuses?
Littelfuse offers several fuse and fuse block
combinations that can greatly improve electrical safety.
LLNRK / LLSRK
FLNR / FLSR fuses
LFR fuse holders
Description
Littelfuse RLN and RLS series renewable fuses have
traditionally been used to provide low cost protection.
However, generally increased levels of available fault current
and the distinct possibility that renewable fuses may be
improperly renewed, have rendered them unsafe. The use of
these fuses in new applications is prohibited by law.
Ordering Information
1
2
3
4
5
Specifications
Voltage Ratings AC: 250 V (RLN); 600 V (RLS)
Interrupting Ratings AC: 10 kA rms symmetrical
Ampere Range
1–600 A
ApprovalsStandard 248-6, Class H
UL Listed (File: E81895)
CSA Certified (File: LR29862)
Fuse LinksTo order, specify LKN (250V) or LKS (600V) plus
ampere rating.
Ampere ratings
20
45
90
25
50
100
30
60
110
35
70
125
40
80
150
6
8*
10
12*
15
175
200
225†
250†
300†
350†
400†
450†
500†
600†
*RLS only.
†These ampere ratings require two links per fuse.
Type
Voltage
Catalog Number
Ordering Number
fuse
fuse
link
link
600
250
600
250
RLS020
rln020
lks025
lkn030
0RLS020.T
0rln020.T
0lks025.s
0lkn030.s
Dimensions
A
A
D
C
B
Refer to
Fig. No.
1 – 30
1
35 – 60
1
70 – 100
110 – 200
225 – 400
450 – 600
www.littelfuse.com
2
2
2
2
F
B
FIG. 1
Amperes
E
C
G
D
FIG. 2
Dimensions Inches (mm)
Series
A
B
RLN
2 (50.8)
12
RLS
5 (127.0)
3 4
RLN
3 (76.2)
RLS
C
D
E
F
G
⁄ (12.7)
12
⁄ (19.1)
5 8
3 4
⁄ (19.1)
5 8
⁄ (15.9)
13 16
(20.6)
—
—
5 ⁄ (139.7)
1 (25.4)
5 8
⁄ (15.9)
11 ⁄16 (27.0)
—
—
—
RLN
5 7⁄8 (149.2)
1 (25.4)
1 (25.4)
11 ⁄16 (27.0)
⁄ (19.1)
15 ⁄16 (33.3)
RLS
7 7⁄8 (200.0)
11 ⁄4 (31.8)
1 (25.4)
15 ⁄ 16 (33.3)
1 8
⁄ (19.1)
19 ⁄16 (39.7)
RLN
7 ⁄ (181.0)
1 ⁄ (38.1)
1 ⁄ (34.9)
1⁄
(39.7)
3 16
⁄
(4.8)
1 ⁄ (28.6)
1 7⁄8 (47.6)
RLS
9 ⁄ (244.5)
3 4
1 ⁄ (44.5)
1 ⁄ (34.9)
1 ⁄
(46.8)
3 16
⁄
(4.8)
1 ⁄ (28.6)
23 ⁄32 (53.2)
RLN
8 ⁄ (219.1)
2 (50.8)
1 ⁄ (47.6)
2⁄
(53.2)
14
⁄ (6.4)
1 ⁄ (41.3)
213 ⁄32 (61.1)
RLS
11 ⁄ (295.3)
2 ⁄ (63.5)
1 ⁄ (47.6)
2 ⁄
(65.9)
14
⁄ (6.4)
5 8
1 ⁄ (41.3)
2 7⁄ 8 (73.0)
RLN
10 ⁄ (263.5)
12
2 ⁄ (63.5)
2 ⁄ (57.2)
2 ⁄
(65.9)
14
⁄ (6.4)
2 (50.8)
2 7⁄8 (73.0)
RLS
13 ⁄ (339.7)
3 (76.2)
2 ⁄ (57.2)
3⁄
(78.6)
14
⁄ (6.4)
2 (50.8)
37⁄16 (87.3)
12
1 8
5 8
5 8
5 8
3 8
3 8
12
⁄ (12.7)
9 16
⁄
(14.3)
—
—
—
⁄ (15.9)
13 16
⁄
(20.6)
—
—
—
⁄
—
3 8
3 8
78
12
78
14
14
1 of 1
9 16
27 32
3 32
19 32
19 32
3 32
⁄ (3.2)
3 4
⁄ (3.2)
3 4
1 8
1 8
1 8
5 8
© 2012 Littelfuse POWR-GARD® Products
Rev: 100112
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