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Class H – RlN / Rls seRies fuses & lkN / lks liNks

250/600 VAC • Renewable • 1-600 A

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.

Specifications

Voltage Ratings

AC: 250 V (RLN); 600 V (RLS)

Interrupting Ratings

AC: 10 kA rms symmetrical

Ampere Range

1–600 A

Approvals

Standard 248-6, Class H

UL Listed (File: E81895)

CSA Certified (File: LR29862)

Fuse Links

To order, specify LKN (250V) or LKS (600V) plus

ampere rating.

*RLS only.

†These ampere ratings require two links per fuse.

ampeRe RatiNgs

1

6

20

45

90

175

2

8*

25

50

100

200

3

10

30

60

110

4

12*

35

70

125

5

15

40

80

150

Ordering Information

type

Voltage

Catalog NumbeR

oRdeRiNg NumbeR

FUSE

600

RLS020

0RLS020.T

FUSE

250

RLN020

0RLN020.T

LiNK

600

LKS025

0LKS025.S

LiNK

250

LKN030

0LKN030.S

A

C

C

D

A

E

B

B

FD

G

FIG. 1

FIG. 2

ampeRes

RefeR to

fig. No.

seRies

dimeNsioNs iNCHes (mm)

A

B

C

D

E

F

G

1 – 30

1

RLN

2 (50.8)

1

1

9

—

—

—

RLS

5 (127.0)

3

5

13

—

—

—

35 – 60

1

RLN

3 (76.2)

3

5

13

—

—

—

RLS

1 (25.4)

5

—

—

—

70 – 100

2

RLN

1 (25.4)

1 (25.4)

1

3

RLS

1 (25.4)

1

3

110 – 200

2

RLN

3

RLS

3

225 – 400

2

RLN

2 (50.8)

1

RLS

1

450 – 600

2

RLN

1

2 (50.8)

RLS

3 (76.2)

1

2 (50.8)

Dimensions

Guide For Proper Renewable Fuse Usage

Renewable fuses should only be used where short-

circuit 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