Technical Data 10728 Effective October 2017

MUSB multi slow-blow fuses

2011/65/EU

Catalog symbols:• MUSB-A_• MUSB-L1-_• MUSB-L3-_• MUSB-M2-_• MUSB-M4-_• MUSB-T_

MUSB-L1-_

MUSB-L3-_

MUSB-M2-_

MUSB-M4-_

Description:Eaton Bussmann™ series MUSB multi slow-blow fuses contain two or more fuse elements of differing amp ratings for protecting circuits in a single fuse holder that bolts onto terminals and mates with multi-pin connectors to power various loads.

Installed in the fuse panel located in the engine compartment, these fuses are direct OEM replacements for those installed in late model Honda®, Acura® and Ford® vehicles. They were created to address the need for custom, complex circuit protection while achieving space and weight savings.

They replace traditional FMX and FMX-LP style cartridge fuses for protecting lights, fans, motors, and other loads with high in-rush currents.

Specifications:Ratings

• Volts: 32 Vdc• Amps:

• See catalog number table for ratings by catalog number

• Interrupting rating: 1 kA

Agency information

• RoHS compliant

Materials

• Element: Copper alloy• Body: PA6T• Cover: PAR

Environmental

• Operating temperature range -40°C to 100°C (-40°F to 212°F)

Dimensions

• See pages 2-3

Applications:• Replacement fuses for automotive OEM part

numbers.

MUSB-T_

MUSB-A_

2

Technical Data 10728Effective October 2017

MUSB slow-blow multi-pole fuses

Eaton.com/bussmannseries

Schematics

Schematic AMUSB-A_

Schematic FMUSB-T_

Schematic EMUSB-M4-_

Schematic DMUSB-M2-_

Schematic BMUSB-L1-_

Schematic CMUSB-L3-_

ROUND

k

ROUND

ROUND

ROUND

ROUND

ROUND

ROUND

ROUND

ROUND

ROUND

ROUNDc

ba

jihgfedcba

jihgfedcba

e

dcba

b

a

f

edcba

Catalog no. OEM part no. Vehicle make Amps VoltsInterrupting rating Schematic

MUSB-A1 38231-SDA-A01

Honda, Acura

100, 70

32 Vdc 1 kA

AMUSB-A2 38231-SFY-003 120, 70MUSB-A3 38231-SEP-A01 100, 40MUSB-A4 38231-SFE-J01 120, 40MUSB-L1-2 38231-T0A-A01 70, 30, 40, 20, 30, 100

BMUSB-L1-4 38231-TX4-A01 70, 40, 20, 40, 30, 120MUSB-L3-1 38233-TR0-A01 Acura 20, 20, 20, 20

CMUSB-L3-3 38233-T6A-J01 Honda, Acura 30, 30, 30, 30MUSB-L3-5 38233-TX4-A01 Acura 30, 40, 30, 40MUSB-M2-1 38232-TR0-A01 Honda, Acura 50, 60, 60, 30, 30, 30, 30, 40, 30, 20, 20 DMUSB-M4-1 38234-TX4-A01 Acura 50, 60, 60, 50, 30, 30, 40, 30, 30, 40 EMUSB-T1 FU5T-14A068-CC

Ford125, 100, 325, Shunt

FMUSB-T4 GU5T-14A068-BA 125, 80, 300, ShuntMUSB-T5 HU5T-14A068-BB Shunt, 275, 200, 125

Dimensions — mm

MUSB-A_

MUSB-L1-_

6.5

8

14

2X 12.48 8

2X 6.5

32

21.1

23.7

27

15.5

9.5

3.5

17.5

9.5

46

8

2

2

1.2

18

14

0.8

30.8

70

33.2

8.2

36.6 29.6 22.6

12.3

54.7 6.8

9.5 3X 4.8

12.5

30.9

7.7

2

9

24.5

12 16.5 0.5

33.5

4

2X Ø6 14

15.5

8

15.7 21.7

8.5

3

3

Technical Data 10728 Effective October 2017

MUSB slow-blow multi-pole fuses

Eaton.com/bussmannseries

Dimensions — mm

MUSB-L3-_

MUSB-M2-_

MUSB-M4-_

MUSB-T_

8.5

7.7

Ø 6

9 12

24.5 61.5

44.5

79 6.6

0.5

22 2

4

0.5

3

8 15.7 21.7

14

0.8

30.8

93.4

1.9

18 30.9

33.2

8.2

4.8

8.2

8

10.4

20.8

30

37 44

51 58

65

72

0.8

30.8

Ø 6

79 6.6

93.4

1.9 7.7

18 30.9

33.2

8.2

4.8

8.2

8

10.4

20.8

44

51

58

65

72

31.2

12

24.5

22 2

4

0.5

3

8 15.7 21.7

14

8.5

56

0.5 39 9

15.9 15.9 6.5 6.5

27.5

4 X R2.5 4 X R

2X Ø 6.5

19.5

17

27.5 8

34.8

15.9 15.9 6.5 6.5

34.8

15.9 15.9

6

4

0.8 6.9

44.1

19.3

19.3

9

37.8

71.5

65.7

44.1

19.5

18

Ø 6

E

8

12.4 18.4

14

34 23.4 4.1

7.7

30.9 33.2

8.2

7

14

21 6.5

4.8

0.8

30.8

MUSB slow-blow multi-pole fusesTechnical Data 10728Effective October 2017

Eaton and Bussmann are valuable trademarks of Eaton in the U.S. and other countries. You are not permitted to use the Eaton trademarks without prior written consent of Eaton.

Ford is a registered trademark of the Ford Motor Company.Acura and Honda are registered trademarks of Honda Motor Company.

Eaton1000 Eaton BoulevardCleveland, OH 44122Eaton.com

Bussmann Division114 Old State RoadEllisville, MO 63021United StatesEaton.com/bussmannseries

© 2017 EatonAll Rights ReservedPrinted in USAPublication No. 10728 — BU-MC17050October 2017

Follow us on social media to get the 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.

For Eaton’s Bussmann seriesproduct information,call 1-855-287-7626 or visit:Eaton.com/BussmannConsumer