Technical Data
2127
Effective April 2017
Supersedes December 2015
BUSSMANN
SERIES
HEB breakaway and non-breakaway
in-line fuse holders for UL 13/32” x 1-1/2”
supplemental fuses
Description
Single conductor
Dual conductor
Catalog no.
2A0660
2A0661
Use these part numbers to order insulating
boots for a non-breakaway HEB holder:
Catalog Symbol: HEB*
Description:
The Bussmann™ series of HEB submersible, single-pole
in-line fuse holders for UL 13/32” x 1-1/2” supplemental
fuses. Available in non-breakaway and breakaway versions
with an array of terminal options to meet application needs.
Breakaway versions come with insulating boots to provide
submersibility per UL IP67. Non-breakaway versions require
ordering optional insulating boots for submersibility.
Boot reference:
4.1
(104)
0.8
(ø20)
4.7
(119)
1.3
(ø33)
Recommended fuses:
BAF, FNM, FNQ, KLM and KTK
Installation instructions:
Strip wire insulation equal to the depth of the crimp or screw
terminal. Torque screw terminal to 35 Lb-In (3.9 N•m) or
crimp terminal twice, spacing crimps a distance of one-third
from each end (as shown below) using an appropriate crimp
tool and die. See page 5 for recommended crimping tools.
Crimp terminal twice
at locations 1/3 distance
from each end
Ratings:
Volts:
Amps:
Withstand:
600V
up to 30A limited by conductor size
200kA RMS Sym.
Agency information:
UL
®
Recognized, Guide IZLT2, File E14853
CSA
®
Certified, Class 622501, File 47235
CE, RoHS compliant
†
Coupling nut torque:
10-20 Lb-In (1.1-2.2 N•m)
Strip wire insulation
to depth of terminal
Operating and storage temperature:
-40°F (-40°C) to 221°F (105°C)
Related products:
Catalog
no.
Description
Two-pole supplemental in-line fuse
HEX
holder
One-pole Class CC in-line fuse
HEZ
holder
Two-pole Class CC in-line fuse
HEY
holder
One-pole in-line, permanently
HET
installed neutral
13/32” x 1-1/2” neutral dummy link
NNB
(not a fuse)
Data
sheet no.
2126
2130
2126
2125
—
Insulating boots:
Two insulating boots come standard with the breakaway
holder configurations. Insulating boots are not included
as standard with non-breakaway holders. Two insulating
boots must be ordered separately, if required, for each
non-breakaway holder ordered. When insulating boots are
utilized, extra heat retention requires that fuses are sized at a
minimum of 200% of the RMS load current.
* The Bussmann series HEB in-line fuse holders are the legacy Bussmann TRON™ HEB
in-line fuse holders.
† See terminal data tables for exceptions.
Technical Data 2127
Effective April 2017
Bussmann series HEB breakaway and non-breakaway
in-line fuse holders for UL 13/32” x 1-1/2” supplemental fuses
To order:
Specify catalog symbol HEB and the loadside terminal code. Then select a lineside terminal code that is
available with the loadside terminal. Example: HEB-BB defines a non-breakaway holder with a loadside
copper crimp terminal for a single #6 or two #10 wires with a lineside copper crimp terminal for a single
#6 or two #10 wires.
Non-breakaway catalog number system
HEB - A A
Loadside
terminal
Lineside
terminal
Catalog
symbol
Agency
Information
UL
X
X
X
X
X
X
—
—
—
—
X
X
X
X
—
X
X
—
X
X
—
—
—
CSA
X
X
X
X
—
—
—
—
—
—
X
X
X
X
—
X
X
—
—
—
—
—
—
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu setscrew
Cu setscrew
Cu setscrew
Cu setscrew
Cu setscrew
Loadside terminal
Terminal type
Wire
range*
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#6;
(2) #10
#6;
(2) #10
#6;
(2) #10
#6;
(2) #10
#6;
(2) #10
#4 str;
(2) #8
#2 str;
(2) #6
#18-20
#3-12
#3-12
#3-12
#3-12
#3-12
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu setscrew
Cu dual
setscrew
Al crimp
Al setscrew
Cu solid
Al dual
setscrew
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu solid
Cu crimp
Cu crimp
Cu crimp
Cu setscrew
Cu dual
setscrew
Al setscrew
Cu solid
Al dual
setscrew
Lineside terminal
Terminal type
Wire
range*
#8-16;
(2) #12-16
#6;
(2) #10
#4 str;
(2) #8
#2 str;
(2) #6
#3-12
#2-12
†
#1-2
#2-12
—
#2-12
†
#8-16;
(2) #12-16
#6;
(2) #10
#4 str;
(2) #8
#2 str;
(2) #6
—
#4 str;
(2) #8
#2 str;
(2) #6
#8-16;
(2) #12-16
#3-12
#2-12
†
#2-12
—
#2-12
†
Reference
length
A
4.4 (112)
4.4 (112)
4.7 (119)
4.7 (119)
4.7 (119)
4.8 (122)
4.9 (124)
4.7 (119)
4.4 (112)
4.8 (122)
4.4 (112)
4.4 (112)
4.7 (119)
4.7 (119)
4.4 (112)
5 (127)
5 (127)
4.4 (112)
5 (127)
5.1 (129)
5 (127)
4.8 (122)
5.1 (129)
Breakaway
equivalent
HEB-AW-RLC-A
HEB-AW-RLC-B
HEB-AW-RLC-C
—
HEB-AW-RLC-J
HEB-AW-RYC
—
HEB-AW-RLA
—
HEB-AW-RYA
HEB-BW-RLC-A
HEB-BW-RLC-B
—
—
—
—
—
—
HEB-JW-RLC-J
HEB-JW-RYC
—
—
—
A
B
C
D
J
A
K
R
L
W
Y
A
HEB
B
B
C
D
W
C
D
Z
C
D
A
J
K
J
L
W
Y
* Solid/stranded conductors unless otherwise noted.
† Not dual wire rated. One wire per opening.
Non-breakaway dimensions - in (mm):
A
9.125 (232)
Assembled length
2
Eaton.com/bussmannseries
Technical Data 2127
Effective April 2017
Bussmann series HEB breakaway and non-breakaway
in-line fuse holders for UL 13/32” x 1-1/2” supplemental fuses
To order:
Specify catalog symbol HEB and the loadside terminal code plus the letter “W.” Then select a lineside
terminal code that is available with the loadside terminal. Example: HEB-BW-RCL-B defines a breakaway
holder with a loadside copper crimp terminal for a single #6 or two #10 wires with a lineside copper crimp
terminal for a single #6 or two #10 wires.
Breakaway catalog number system
HEB - A W - RYC
Agency
Information
UL
X
X
X
X
X
—
—
X
X
X
X
X
X
X
—
—
—
Loadside
terminal
Lineside
terminal
Catalog
symbol
Loadside terminal
Terminal type
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu crimp
Cu setscrew
Cu setscrew
Cu dual
setscrew
Cu dual
setscrew
Al setscrew
Al setscrew
Al setscrew
Lineside terminal
Wire
range*
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#8-16;
(2) #12-16
#6;
(2) #10
#6;
(2) #10
#6;
(2) #10
#3-12
#3-12
#2-12
†
#2-12
†
#2-12
#2-12
#2-12
CSA
X
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Terminal type
Cu crimp
Cu crimp
Cu crimp
Cu
setscrew
Cu dual
setscrew
Al setscrew
Al dual
setscrew
Cu crimp
Cu crimp
Cu dual
setscrew
Cu
setscrew
Cu dual
setscrew
Cu
setscrew
Cu dual
setscrew
Al setscrew
Cu
setscrew
Al dual
setscrew
Wire
range*
#8-16;
(2) #12-16
#6;
(2) #10
#4 str;
(2) #8
#3-12
#2-12
†
#2-12
#2-12
†
#8-16;
(2) #12-16
6#;
(2) #10
#2-12
†
#3-12
#2-12
†
#3-12
#2-12
†
#2-12
#3-12
#2-12
†
Length
Non-
A
breakaway
(reference) equivalent
5.8 (147)
5.9 (150)
6.2 (158)
6.2 (158)
6.3 (159)
6.2 (158)
6.3 (159)
5.8 (147)
5.9 (150)
6.3 (159)
6.2 (158)
6.3 (159)
6.2 (158)
6.3 (159)
6.2 (158)
6.2 (158)
6.3 (159)
HEB-AA
HEB-AB
HEB-AC
HEB-AJ
HEB-AK
HEB-AL
HEB-AY
HEB-BA
HEB-BB
—
HEB-JJ
HEB-JK
—
—
HEB-LL
—
—
RLC-A
RLC-B
RLC-C
A
RLC-J
RYC
RLA
RYA
RLC-A
HEB
B
RLC-B
RYC
RLC-J
J
RYC
RLC-J
K
RYC
RLA
L
RLC-J
RYA
* Solid/stranded conductors unless otherwise noted.
† Not dual wire rated. One wire per opening.
Dimensions - in (mm):
Breakaway
A
10.375 (263)
Assembled length
4
Eaton.com/bussmannseries
ADI Reference Circuit
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