Bussmann Series Class J DFJ High Speed Fuse Data Sheet No. 1048 Brochure

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Technical Data 1048 Effective December 2015

Supersedes November 2013

BUSSMANN

SERIES

DFJ Class J high speed fuses

Catalog symbol:

• DFJ-_

Description:

The Bussmann® series DFJ drive fuse is a

high speed, current-limiting fuse that provides

maximum protection for AC and DC drives

and controllers and meet NEC® branch circuit

protection requirements. The drive fuse has the

lowest I2t of any branch circuit fuse to protect

power semiconductor devices that utilize

diodes, GTOs, SCRs and SSRs.

Specications:

Ratings

• Volts

• 600Vac (or less)

• 450Vdc (or less, 15-600A)

• Amps 1-600A

• IR

• 200kA RMS Sym.

• 100kA DC

Agency information

• CE

• UL® Listed Standard 248-8, Class J, Guide

JDDZ, File E4273

• CSA® Certified, Class 1422-02, File 53787

• RoHS compliant

Features:

• Easily coordinated with existing and new

variable speed drives and electric controllers.

• Standard Class J dimensions allow using

readily available fuse blocks, holders and

switches.

• Has the lowest let-through energy of any

branch circuit overcurrent protective device.

Typical applications

• Protection of AC and DC drives

• Equipment using power semiconductor

devices

Recommended fuse blocks and

holders:

Fuse

amps 1-Pole 2-Pole 3-Pole

Modular ferrule blocks (data sheet No. 10289)

0-30 JM60030-1_ JM60030-2_ JM60030-3_

35-60 JM60060-1_ JM60060-2_ JM60060-3_

“Pyramid” blocks (data sheet No. 1108)

0-30 — — JP60030-3_

CH holders (data sheet No. 2144)

0-30 CH30J1_ CH30J2_ CH30J3_

35-60 CH60J1_ CH60J2_ CH60J3_

Safety J™ holders (data sheet No. 1152)

0-30 JT60030_ — —

35-60 JT60060_ — —

JM modular knifeblade fuse blocks (data sheet No. 3192)

70-100 JM60100-1CR JM60100-2CR JM60100-3CR

110-200 JM60200-1CR JM60200-2CR JM60200-3CR

225-400 JM60400-1CR JM60400-2CR JM60400-3CR

450-600 JM60600-1CR JM60600-2CR JM60100-3CR

Power distribution fuse blocks (data sheet No. 10192)

70-100 JM60100-

1MW14

JM60100-

2MW14

JM60100-

3MW14

110-200 JM60200-

1MW16

JM60200-

2MW16

JM60200-

3MW16

225-400

JM60400-

1MW16

JM60400-

2MW16

JM60400-

3MW16

JM60400-

1MW26*

JM60400-

2MW26*

JM60400-

3MW26*

* Lineside dual box lug terminal.

2

Technical Data 1048

Effective December 2015

DFJ Class J high speed fuses

Eaton.com/bussmannseries

Catalog numbers (amps):

DFJ-1 DFJ-15 DFJ-70 DFJ-225

DFJ-2 DFJ-20 DFJ-80 DFJ-250

DFJ-3 DFJ-25 DFJ-90 DFJ-300

DFJ-4 DFJ-30 DFJ-100 DFJ-350

DFJ-5 DFJ-35 DFJ-110 DFJ-400

DFJ-6 DFJ-40 DFJ-125 DFJ-450

DFJ-8 DFJ-45 DFJ-150 DFJ-500

DFJ-10 DFJ-50 DFJ-175 DFJ-600

DFJ-12 DFJ-60 DFJ-200

Carton quantity:

Amp rating Carton qty.

1–60 10

70–200 5

225–600 1

Electrical characteristics:

Catalog

number Amps

I2t (A2 Sec) @ 600Vac/100kA Watts

lossPre-arc Clearing

DFJ-15 15 4110 4.1

DFJ-20 20 8 365 4.0

DFJ-25 25 12 610 4.9

DFJ-30 30 20 1000 5.5

DFJ-35 35 55 110 0 6.8

DFJ-40 40 90 1900 8.6

DFJ-50 50 140 2800 8.7

DFJ-60 60 290 6000 8.5

DFJ-70 70 450 3100 12

DFJ-80 80 650 4600 13

DFJ-90 90 1010 7200 13

DFJ-100 100 1460 10,500 13

DFJ-110 110 1710 9500 17

DFJ-125 125 3580 20,000 15

DFJ-150 150 5080 28,000 19

DFJ-175 175 6310 35,000 23

DFJ-200 200 9850 54,500 24

DFJ-225 225 11,420 51,000 29

DFJ-250 250 17,000 74,500 30

DFJ-300 300 23,500 103,000 36

DFJ-350 350 38,800 170,000 39

DFJ-400 400 62,200 272,000 40

DFJ-450 450 44,600 270,000 56

DFJ-500 500 79,500 480,000 52

DFJ-600 600 138,000 830,000 57

Dimensions - in:

6.0"

8.0"

(± 0.03)

3.75"

.74" 2.13" .38"

.53"

2"

450A to

600A 2.5"

7.13"

(± 0.03)

5.25"

3.38"

.58"

1.63"

1.88"

.41"

2.11"

.25"

225A to

400A

5.75"

(± 0.03)

4.38"

3.0"

.43" 1.38"

4.63"

(± 0.03)

3.63"

2.63"

70A to 100A

.28"

.75" 1.13"

.13"

1"

.43"

1.13"

.28"

.19"

1.63"

110A to

200A

2.25˝

0.50˝ 0.81˝

2.38˝

0.63˝ 1.06˝

3

Technical Data 1048

Effective December 2015

DFJ Class J high speed fuses

Eaton.com/bussmannseries

Time-current curves — average melt

Current in amps

Time in seconds

Current in amps

DFJ Class J high speed fusesTechnical Data 1048

Effective December 2015

Eaton, Bussmann and Low-Peak are

valuable trademarks of Eaton in the US

and other countries. You are not permitted

to use the Eaton trademarks without prior

written consent of Eaton.

CSA is a registered trademark of the

Canadian Standards Group.

NEC is a registered trademark of the

National Fire Protection Association, Inc.

UL is a registered trademark of the

Underwriters Laboratories, Inc.

Eaton

1000 Eaton Boulevard

Cleveland, OH 44122

United States

Eaton.com

Bussmann Division

114 Old State Road

Ellisville, MO 63021

United States

Eaton.com/bussmannseries

© 2015 Eaton

All Rights Reserved

Printed in USA

Publication No. 1048 – BU-SB131065

December 2015

For Eaton’s Bussmann series

product information,

call 1-855-287-7626 or visit:

Eaton.com/bussmannseries

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latest product and support information.

The only controlled copy of this data sheet is the electronic read-only version located on the Eaton network drive. All other copies of this

document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical

information that will help the end user with design applications. Eaton reserves the right, without notice, to change design or construction

of any products and to discontinue or limit distribution of any products. Eaton also reserves the right to change or update, without notice,

any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible

applications.

Current-limitation curves

Peak current in amps

Available RMS current in amps