Stud-mounted fuses
Catalog symbol: ACK-_
Description:
Bussmann® series stud-mounted fuse.
Specications:
Ratings
•  Volts - 130 Vdc (or less)
•  130 Vdc - (10-100 A)
•  72 Vdc - (120-200 A)
•  48 Vdc - (225-300 A)
•  80 Vdc - (400 A)
•  Amps - 10-400 A
•  Interrupting rating - 10 kA
Agency information
•  UL® Recognized 15-300A, Guide JFHR2, File
E56412
Features:
•  These fuses avoid needless openings from
starting currents or surges
•  A fuse link which operates only on very high
overloads or short-circuits
•  Thermal cutout functions on low overloads –
the thermal cutout cannot operate quickly at
any load, hence long timelag is obtained on
high overloads of short duration
•  This long time-lag also makes it unnecessary
to use extra large size or over-size fuses
Catalog numbers (amps)
ACK-10 ACK-40 ACK-100 ACK-200
ACK-15 ACK-50 ACK-120 ACK-225
ACK-20 ACK-60 ACK-140 ACK-250
ACK-25 ACK-70 ACK-150 ACK-300
ACK-30 ACK-75 ACK-160 ACK-400
ACK-35 ACK-80 ACK-175 —
Test specifications
Fuse Load Opening time
ACK
200% 100 Seconds*
300% 35 Seconds*
500% 13 Seconds*
*Approximately.
Recommended fuse blocks:
Catalog
number
Block
number
Catalog
number
Block
number
ACK 10-30 4228 ACK 120-200 3569
ACK 35-60 3411 ACK 225-400 3578
ACK 70-100 2322
B
A
D
CE
F
G
Dimensions - in (mm):
Catalog
number
A
B
C D E F G
ACK 10-30 2.5”
(63.5)
0.375”
(9.53)
0.500”
(12.70)
0.250”
(6.35)
0.557”
(14.15)
0.588”
(14.94)
0.031”
(0.79)
ACK 35-60 3.0”
(76.20)
0.470”
(11.94)
0.685”
(17.40)
0.344”
(8.74)
0.812”
(20.63)
0.860”
(21.84)
0.051”
(1.30)
ACK 70-100 3.5”
(88.90)
0.547”
(13.89)
0.750”
(19.05)
0.312”
(7.92)
1.062”
(26.98)
1.15”
(29.21)
0.050”
(1.27)
ACK 120-200 3.750”
(95.25)
0.750”
(19.05)
0.750”
(19.05)
0.375”
(9.52)
1.062”
(26.98)
1.15”
(29.21)
0.050”
(1.27)
ACK 225-400 3.750”
(95.25)
0.610”
(15.49)
0.750”
(19.05)
0.312”
(7.92)
1.062”
(1.062)
1.125”
(28.58)
0.050”
(1.27)
Dimensions in inches and (mm)
Note: 10-60 amp fuses use brass terminals and ferrules.
70-400 amp fuses use copper terminals and ferrules.
Technical Data 1040 Effective June 2017
Supersedes June 2016
BUSSMANN
SERIES
2
Technical Data 1040
Effective June 2017
Eaton.com/bussmannseries
Catalog
symbol
Dimensions in Inches and (mm)
A B C D E F G
ACK 10-30 2.5”
(63.5)
0.375”
(9.53)
0.500”
(12.70)
0.250”
(6.35)
0.557”
14.15)
0.588”
(14.94)
0.031”
(0.79)
ACK 35-60 3.0”
(76.20)
0.470”
(11.94)
0.685”
(17.40)
0.344”
(8.74)
0.812”
(20.63)
0.860”
(21.84)
0.051”
(1.30)
ACK 70-100 3.5”
(88.90)
0.547”
(13.89)
0.750”
(19.05)
0.312”
(7.92)
1.062”
(26.98)
1.125”
(28.58)
0.050”
(1.27)
ACK 120-200 3.750”
(95.25)
0.750”
(19.05)
0.750”
(19.05)
0.375”
(9.52)
1.062”
(26.98)
1.15”
(29.21)
0.050”
(1.27)
ACK 225-400 3.750”
(95.25)
0.610”
(15.49)
0.750”
(19.05)
0.312”
(7.92)
1.062”
(1.062)
1.125”
(28.58)
0.050”
(1.27)
Note: 10-60 amp fuses use brass terminals and ferrules. 70-400
amp fuses use copper terminals and ferrules.
Time-current curves – average melt
Stud-mounted fuses
Technical Data 1040
Effective June 2017
Stud-mounted fuses
Follow us on social media to get the
latest product and support information.
For Eaton’s Bussmann series
product information,
call 1-855-287-7626 or visit:
Eaton.com/bussmannseries
Eaton and Bussmann 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.
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
© 2017 Eaton
All Rights Reserved
Printed in USA
Publication No. 1040 – SB98107
June 2017
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.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Eaton:
3578 3569 ACK-50 ACK-80 ACK-40 ACK-100 ACK-300 ACK-225 ACK-175 ACK-70 ACK-150 ACK-30 ACK-
35 ACK-75 ACK-20 3411 ACK-250 ACK-140 ACK-160 ACK-15 ACK-120A ACK-60 ACK-400 ACK-200 ACK-10
ACK-25 BK/ACK-120A BK/ACK-175 BK/ACK-140 BK/ACK-30 BK/ACK-60 BK/ACK-250 BK/ACK-40