Technical Data 1118

Effective June 2016

Supersedes December 2015

BUSSMANN

SERIES

Catalog symbols:

•

NO._ (Class H/K)

•

NO._-R (Class R)

•

J-_ (Class J)

Description:

Class H(K), J and R ferrule and blade fuses.

Fuse reducers install on fuse ferrules or blades

to permit the application of smaller size fuses

than those for which the fuse blocks or holders

are designed.

The following conditions and limitations apply

to the fuse reducers listed in this data sheet:

•

There are no reducers to fit a 250V fuse

into a 600V block or a 600V fuse into a 250V

block.

•

Fuse reducers for fuse blocks or holders

intended for current-limiting fuses will not

accept non-current limiting fuses.

•

There are no reducers for Class T fuses.

•

By design, Class L fuses do not require

reducers.

Further limitations are detailed in the catalog

number tables.

Class H (K), J and R ferrule and blade fuse reducers

Specifications:

Ratings

•

Volts

•

250V (Class H(K) and R)

•

600V (Class H(K), J, and R)

•

Amps 30-600A

•

Short-circuit Current Rating (SCCR) up to

fuse interrupting rating

•

•

•

RoHS compliant

† See catalog number tables for exceptions.

Features:

•

Reducers fit into most panels or switches

including dead-front types

•

Strong contact is maintained both

mechanically and electrically

Class J fuse reducers*

For Bussmann series LPJ and JKS fuses.

Fuse size

Amp size of

fuse block or

disconnect switch

Catalog No.

(pair)

Up to 30A

60A

J-63

Up to 30A

100A

J-13

35 to 60A

100A

J-16

35 to 60A

J-26

65 to 100A

J-21

65 to 100A

J-41

110 to 200A

J-42

110 to 200A

J-62

225 to 400A

J-64

* These reducers are not CSA Certified or UL Listed.

†† Not for bolt-on fuse applications.

Note: Carton quantity - 10 pair.