Edison base plug fuses – fast-acting, 125 volts,
1/2–12 amps
Catalog symbol:
• W - (amps)
Description:
Bussmann® series fast-acting Edison base
plug fuse.
Specications:
Ratings
• Volts — 125 Vac or less
• Amps — 1/2 to 12 A
• Interrupting rating — 10 kA RMS Sym
Agency Information
• UL® Listed, Std. 248-11, Guide JEFV, File
E12112
• CE
Catalog numbers (amps)
W - 1/2 W - 5
W - 1 W - 6
W - 1-8/10 W - 6-1/2
W - 2 W - 7
W - 2-1/2 W - 8
W - 3 W - 10
W - 4 W - 12
Package quantity and weight
Amp
ratings
Quantity Weight
Per
box
Per
card
Per
box
Per 5
cards
15 to 30 A 4 1 0.96 1.20
W-15, W-20, W-25, and W-30 plug fuses
obsoleted suggest replacing with either
T-(amp) or TL-(amp) plug fuses
Both the T and TL Bussmann series plug
fuses offer similar short-circuit protection to
the W plug fuses. In addition, the T and TL
plug fuses offer time-delay performance for
overload currents (typically between one and
six times the rated current of the fuse). For
most applications, this feature is preferred to
allow harmless inrush currents to pass without
causing the fuse to open unnecessarily. The TL
plug fuses (data sheet No. 1035) utilize a loaded
link construction and provide medium-duty
performance. The T plug fuses (data sheet No.
1034) utilize the advanced dual-element design
for heavy-duty performance. This construction
makes the T plug fuses the preferred selection.
For additional information, please see the
applicable data sheets.
Features:
• For lighting, heating or other circuits that do
not contain electric motors
• Edison base size
• These fuses thread into fuse receptacles or
Bussmann series box cover units
• The general purpose (W) fuse has no
time-delay feature and should not be used in
circuits that contain motors
Recommended fuse holders
Catalog
numbers
Type
box
Catalog
numbers
Type
box
SOU 2 1/4”
handy
SOY
4”
square
SRU SRY
SSU SSY
SOW 2 3/4”
handy
SSY-RL
SRW STY
SSW SCY
SOX 4”
octagon
SOY-B
SRX SSN Single
gang
Technical Data 1036 Effective May 2016
Supersedes June 2003
BUSSMANN
SERIES
Edison base plug fuses
fast-acting, 125 volts, 1/2-12 amps
TechnicalData1036
Effective May 2016
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
© 2016 Eaton
All Rights Reserved
Printed in USA
Publication No. 1036 – SB03177
May 2016
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.
Time-current curve – average melt
1
10
100
200
0.4
100
10
1
0.1
0.01
Time in seconds
Amp
rating
1
3
6
10
Current in amps
Time in seconds