Bussmann J, NO Data Sheet

Effective February 2017

BUSSMAN N

SERIES

Technical Data 1118

Supersedes June 2016

Class H/K, J and R ferrule and blade fuse reducers

Specifications:

Ratings

•

Volts

• 250 V (Class H, K and R)

• 600 V (Class H, J, K and R)

•

Amps 30-600 A

•

Short-circuit Current Rating (SCCR) up to fuse
interrupting rating

Agency information

•

UL® Listed, Guide IZZR, File E12853

•

CSA® Certified, Class 6225-01, File 47235

•

RoHS compliant

† See catalog number tables for exceptions.

†

Catalog symbols:

•

NO._ (Class H/K)

•

NO._-R (Class R)

•

J-_ (Class J)

Description:

A range of Bussmann™ series fuse reducers for
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 250 V fuse into a
600 V block or a 600 V fuse into a 250 V 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.

Features:

•

Reducers fit into most panels or switches
including the dead-front type

•

Strong contact is maintained both mechanically
and electrically

Class J fuse reducers*

For Bussmann series LPJ and JKS fuses.

Amp size of

Fuse size

Up to 30 A 60 A J-63
Up to 30 A 100 A J-13
35 to 60 A 100 A J-16
35 to 60 A 200 A
65 to 100 A 200 A
65 to 100 A 400 A
110 to 200 A 400 A
110 to 200 A 600 A
225 to 400 A 600 A

* These reducers are not CSA Certified or UL Listed.

†† Not for bolt-on fuse applications.

††† Not compatible with JKS fuses.

Note: Carton quantity - 10 pair.

fuse block or
disconnect switch

††

††

††

††

††

††

Catalog no.
(pair)

J-26
J-21
J-41

†††

J-42
J-62
J-64

Effective February 2017

Class H/K, J and R ferrule and blade fuse reducersTechnical Data 1118

Class R fuse reducers

For Bussmann series FRN-R/LPN-RK (250 V) and
FRS-R/LPS-RK (600 V) fuses.

Amp size of

Fuse size

Up to 30 A 60 A No.263-R No.663-R
Up to 30 A
35 to 60 A No.216-R No.616-R
35 to 60 A
65 to 100 A No.2621-R* No.2621-R*
65 to 100 A
110 to 200 A No.242-R* No.642-R*
65 to 100 A
110 to 200 A No.2662-R* No.2662-R*

225 to 400 A No.2664-R*† No.2664-R*†

* These reducers are not CSA Certified.

† Single reducer only (pair not required)

Note: Carton quantity - 10 pair.

fuse block or
disconnect switch

100 A

200 A

400 A

600 A

Catalog No. (pairs)

250V 600V

No.213-R No.216-R

No.226-R No.626-R

No.2641-R* No.2641-R*

No.2661-R* No.2661-R*

Class H and K fuse reducers

For Bussmann series NON/REN (250 V) and
NOS/RES (600 V) fuses.

Amp size of

Fuse size

Up to 30 A 60 A No.263 No.663
Up to 30 A 100 A No.213 No.216
35 to 60 A 100 A No.216 No.616
35 to 60 A 200 A No.226 No.626
65 to 100 A 200 A No.2621 No.2621
65 to 100 A 400 A No.2641* No.2641*
110 to 200 A 400 A No.2642 No.2642
65 to 100 A 600 A No.2661* No.2661*
110 to 200 A 600 A No.2662* No.2662*
225 to 400 A 600 A No.2664* No.2664*

* These reducers are not CSA Certified.

Note: Carton quantity - 10 pair.

fuse block or
disconnect switch

Catalog No. (pairs)

250V 600V