Stud-mounted fuses one-time
Catalog symbol: ALS-_
Description:
Bussmann® series stud-mounted, one-time
fuse.
Specications:
Ratings
• Volts - 125 Vdc (or less)
• 130 Vdc - (100-175 A)
• 80 Vdc - (300A)
• 48 Vdc - (200-250 A), (350-500 A)
• Amps - 100-600 A
• Interrupting rating
• 10 kA - (100-175 A)
• 5 kA - (200-500 A)
Agency information
• UL® Recognized, Guide JFHR2, File E56412
Catalog numbers (amps)
ALS-100 ALS-225B ALS-300B ALS-450
ALS-175 ALS-250 ALS-350 ALS-500
ALS-200 ALS-250B ALS-350B ALS-500B
ALS-200B ALS-300 ALS-400 ALS-550
ALS-225 ALS-300A ALS-400B ALS-600
Dimensions - in:
System voltage A B C D E F G
ALS 100-175 3.5 3.5 2.41 0.75 0.312 1.06 1.13
88.9 88.9 61.1 19.1 7.92 26.85 28.6
ALS 200-500 3.75 2.7 2.25 0.75 0.375 1.06 1.13
95.3 68.6 57.2 19.1 9.53 26.85 28.6
ALS 550-600 4.25 2.38 2.38 1.25 0.531 1.59 1.81
107.95 60.5 60.5 31.75 13.5 40.4 46.1
A
B
C
EF
D
G
Dimensions:
Technical Data 1037 Effective June 2016
Supersedes March 2004
BUSSMANN
SERIES
Technical Data 1037
Effective June 2016
Time-current curves—average melt
100
10
1
0.1
0.01
Time in seconds
Current in amps x 10
10
100
1000
4000
100
Amp
rating
200
300
500
600
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For Eaton’s Bussmann series
product information,
call 1-855-287-7626 or visit:
Eaton.com/bussmannseries
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.
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
© 2016 Eaton
All Rights Reserved
Printed in USA
Publication No. 1037 – SB04068
June 2016
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
ofany 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.
Stud-mounted fuses one-time
