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Technical Data 10413

Effective August 2015

250V KWN-R and 600V KWS-R Class RK1 fuses

Eaton.com/bussmannseries

Features:

applications that have specific current limitation requirements.

current limiting fuses helps prevent damage caused by short-

circuit events

for today’s large capacity systems

higher ampacity DC circuits

base fuse block is recommended as it helps prevent a lesser-

rated fuse from being installed. However, both KWN-R and

KWS-R fuses can be inserted in non-rejection type fuse holders

to physically and electrically replace fast-acting Class H, RK1, K5,

RK5 and other fast-acting fuses.

Recommended fuse blocks:

Fuse amps

1-pole

2-pole

3-pole

250V KWN-R

0-30

RM25030-1_

RM25030-2_

RM25030-3_

35-60

RM25060-1_

RM25060-2_

RM25060-3_

600V KWS-R

0-30

RM60030-1_

RM60030-2_

RM60030-3_

35-60

RM60060-1_

RM60060-2_

RM60060-3_

See data sheet No. 10289 for details.

Fuse reducers for Class R fuses:

Equipment

fuse clips

Desired fuse

(case) size

Catalog numbers (pairs)

250V

600V

60A

30A

NO.263-R

NO.663-R

100A

30A

NO.213-R

NO.216-R

60A

NO.216-R

NO.616-R

200A

60A

NO.226-R

NO.626-R

For additional information on Class R fuse reducers, see data sheet

No. 1118.

Dimensions - in:

250V KWN-R

600V KWS-R

1/10 to 30A

0.56" (± 0.008)

2"

(± 0.31)

35 to 60A

0.81" (± 0.008)

3"

(± 0.31)

1/10 to 30A

0.81" (± 0.008)

5"

(± 0.31)

35 to 60A

1.06" (± 0.008)

5.5"

(± 0.31)