Technical Data 2127 Effective January 2019
Supersedes April 2017
BUSSMANN
SERIES
HEB breakaway and non-breakaway
in-line fuse holders for UL 13/32” x 1-1/2”
supplemental fuses
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.
Recommended fuses
BAF, FNM, FNQ, KLM and KTK
Ratings
Volts: 600 V
Amps: up to 30 A limited by conductor size
Withstand: 200 kA 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)
Operating and storage temperature
-40°F (-40°C) to 221°F (105°C)
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.
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.
Related products:
Catalog
no. Description
Data
sheet no.
HEX Two-pole supplemental in-line
fuse holder 2126
HEZ One-pole Class CC in-line
fuse holder 2130
HEY Two-pole Class CC in-line
fuse holder 2126
HET One-pole in-line, permanently
installed neutral 2125
NNB 13/32” x 1-1/2” neutral
dummy link (not a fuse) —
* The Bussmann series HEB in-line fuse holders are the legacy
Bussmann TRON™ HEB in-line fuse holders.
† See terminal data tables for exceptions.
Strip wire insulation
to depth of terminal
Crimp terminal twice
at locations 1/3 distance
from each end
Use these part numbers to order insulating
boots for a non-breakaway HEB holder
Description Catalog no.
Single conductor 2A0660
Dual conductor 2A0661
Boot reference
4.1
(104)
4.7
(119)
1.3
(ø33)
0.8
(ø20)
2
Technical Data 2127
Effective January 2019
Bussmann series HEB breakaway and non-breakaway
in-line fuse holders for UL 13/32” x 1-1/2” supplemental fuses
Non-breakaway catalog number system
HEB - A A
Catalog
symbol
Loadside
terminal
Lineside
terminal
Agency
Info. Loadside terminal Lineside terminal Ref.
length
A
Breakaway
equivalentUL CSA Terminal type
Wire
range* Terminal type Wire range*
HEB
A
AX X Cu crimp #8-16; (2) #12-16
Sol/Str Cu crimp #8-16; (2) #12-16
Sol/Str 4.4 (112) HEB-AW-RLC-A
BX X Cu crimp #8-16; (2) #12-16
Sol/Str Cu crimp #6; (2) #10 4.4 (112) HEB-AW-RLC-B
CX X Cu crimp #8-16; (2) #12-16
Sol/Str Cu crimp #4; (2) #8 4.7 (119) HEB-AW-RLC-C
DX X Cu crimp #8-16; (2) #12-16
Sol/Str Cu crimp #2; (2) #6 4.7 (119) —
JX X Cu crimp #8-16; (2) #12-16
Sol/Str
Cu
setscrew
#3-12 Str;
#10-12 Sol 4.7 (119) HEB-AW-RLC-J
KX X Cu crimp #8-16; (2) #12-16
Sol/Str
Cu dual
setscrew
#2-12 Str†;
#10-12 Sol†4.8 (122) HEB-AW-RYC
R— — Cu crimp #8-16; (2) #12-16
Sol/Str Al crimp #1-2 4.9 (124) —
L— — Cu crimp #8-16; (2) #12-16
Sol/Str
Al
setscrew #2-12 4.7 (119) HEB-AW-RLA
W— — Cu crimp #8-16; (2) #12-16
Sol/Str Cu solid —4.4 (112) —
Y— — Cu crimp #8-16; (2) #12-16
Sol/Str
Al dual
setscrew #2-12†4.8 (122) HEB-AW-RYA
B
AX X Cu crimp #6; (2) #10 Cu crimp #8-16; (2) #12-16
Sol/Str 4.4 (112) HEB-BW-RLC-A
BX X Cu crimp #6; (2) #10 Cu crimp #6; (2) #10 4.4 (112) HEB-BW-RLC-B
CX X Cu crimp #6; (2) #10 Cu crimp #4; (2) #8 4.7 (119) —
DX X Cu crimp #6; (2) #10 Cu crimp #2; (2) #6 4.7 (119) —
W— — Cu crimp #6; (2) #10 Cu solid —4.4 (112) —
C C X X Cu crimp #4; (2) #8 Cu crimp #4; (2) #8 5 (127) —
D D X X Cu crimp #2; (2) #6 Cu crimp #2; (2) #6 5 (127) —
Z A — — Cu crimp #18-20 Cu crimp #8-16; (2) #12-16
Sol/Str 4.4 (112) —
J
JX X Cu
setscrew
#3-12 Str;
#10-12 Sol
Cu
setscrew
#3-12 Str;
#10-20 Sol 5 (127) HEB-JW-RLC-J
KX X Cu
setscrew
#3-12 Str;
#10-12 Sol
Cu dual
setscrew
#3-12 Str†;
#10-20 Sol†5.1 (129) HEB-JW-RYC
L— — Cu
setscrew
#3-12 Str;
#10-12 Sol
Al
setscrew #2-12 5 (127) —
W— — Cu
setscrew
#3-12 Str;
#10-12 Sol Cu solid —4.8 (122) —
Y— — Cu
setscrew
#3-12 Str;
#10-12 Sol
Al dual
setscrew #2-12†5.1 (129) —
* Stranded conductors unless otherwise noted.
† Not dual wire rated. One wire per opening.
Non-breakaway dimensions - in (mm):
A
9.125 (232)
Assembled length
Eaton.com/bussmannseries
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.
3
Technical Data 2127
Effective January 2019
Bussmann series HEB breakaway and non-breakaway
in-line fuse holders for UL 13/32” x 1-1/2” supplemental fuses
Eaton.com/bussmannseries
Non-Breakaway terminal data
Terminal type
Conductor data
Catalog symbol
[Load /Line]
Wire range
No. per
terminal
Solid
Stranded
Cu crimp #8-16
#12-16
1
2
•
•
•
•A
#6
#10
1
2
•
•
•
•B
#4
#8
1
2
—
•
•
•C††
#2
#6
1
2
—
•
•
•D††
#18-20 1 • • Z
Cu setscrew #3-12
#10-12
1
1
—
•
•
•J
Cu dual
setscrew #2-12
#10-12
2†
2†
—
•
•
•K
Cu solid
— — — — W
† Not dual wire rated. One wire per opening.
†† Fuse holder assemblies using this terminal are not RoHS compliant.
Terminal type
Conductor data
Catalog symbol
[Load /Line]
Wire range
No. per
terminal
Solid
Stranded
Al crimp #8
#6
1
1
—
•
•
—N
#6
#4
1
1
—
•
•
—P
#3-4
#2
1
1
—
•
•
—Q
#1-2 1 — •R
#1/0 1 — •T
Al setscrew
#2-12 1 • • L
Al dual
setscrew
#2-12 2†• • Y
Non-breakaway catalog number system
HEB - A A
Catalog
symbol
Loadside
terminal
Lineside
terminal
Agency
Information Loadside terminal Lineside terminal Reference
length
A
Breakaway
equivalentUL CSA Terminal type
Wire
range* Terminal type
Wire
range*
HEB
L L — — Al
setscrew #2-12 Al
setscrew #2-12 5 (127) HEB-LW-RLA
N N — — Al crimp #8 Str;
#6 Sol Al crimp #8 Str;
#6 Sol 5.4 (137) —
P P — X Al crimp #6 Str;
#4 Sol Al crimp #6 Str;
#4 Sol 5.4 (137) —
Q Q — X Al crimp #3-4 Str;
#2 Sol Al crimp #3-4 Str;
#2 Sol 5.4 (137) —
R R — X Al crimp #1-2 Al crimp #1-2 5.4 (137) —
T T — X Al crimp 1/0 Al crimp 1/0 5.4 (137) —
W W — — Cu solid —Cu solid —4.4 (112) —
* Stranded conductors unless otherwise noted.
4
Technical Data 2127
Effective January 2019
Bussmann series HEB breakaway and non-breakaway
in-line fuse holders for UL 13/32” x 1-1/2” supplemental fuses
Eaton.com/bussmannseries
Breakaway catalog number system
HEB - A W - RYC
Catalog
symbol
Loadside
terminal
Lineside
terminal
Agency
Info. Loadside terminal Lineside terminal Length
A
(ref.)
Non-
breakaway
equivalentUL CSA Terminal type Wire range* Terminal type Wire range*
HEB
A
RLC-A X X Cu crimp #8-16; (2) #12-16
Sol/Str Cu crimp #8-16; (2) #12-16
Sol/Str 5.8 (147) HEB-AA
RLC-B X X Cu crimp #8-16; (2) #12-16
Sol/Str Cu crimp #6; (2) #10 5.9 (150) HEB-AB
RLC-C X X Cu crimp #8-16; (2) #12-16
Sol/Str Cu crimp #4; (2) #8 6.2 (158) HEB-AC
RLC-J X X Cu crimp #8-16; (2) #12-16
Sol/Str
Cu
setscrew
#3-12 Str
#10-12 Sol 6.2 (158) HEB-AJ
RYC X X Cu crimp #8-16; (2) #12-16
Sol/Str
Cu dual
setscrew
#2-12 Str†;
#10-12 Sol†6.3 (159) HEB-AK
RLA — — Cu crimp #8-16; (2) #12-16
Sol/Str
Al
setscrew #2-12 6.2 (158) HEB-AL
RYA — — Cu crimp #8-16; (2) #12-16
Sol/Str
Al dual
setscrew #2-12†6.3 (159) HEB-AY
B
RLC-A X X Cu crimp #6; (2) #10 Cu crimp #8-16; (2) #12-16 5.8 (147) HEB-BA
RLC-B X X Cu crimp #6; (2) #10 Cu crimp 6#; (2) #10 5.9 (150) HEB-BB
RYC X X Cu crimp #6; (2) #10 Cu dual
setscrew
#2-12 Str†;
#10-12 Sol†6.3 (159) —
J
RLC-J X X Cu
setscrew
#3-12 Str;
#10-12 Sol
Cu
setscrew
#3-12 Str;
#10-12 Sol 6.2 (158) HEB-JJ
RYC X X Cu
setscrew
#3-12 Str;
#10-12 Sol
Cu dual
setscrew
#2-12 Str†;
#10-12 Sol†6.3 (159) HEB-JK
K
RLC-J X X Cu dual
setscrew
#2-12 Str†;
#10-12 Sol†
Cu
setscrew
#3-12 Str;
#10-12 Sol 6.2 (158) —
RYC X X Cu dual
setscrew
#2-12 Str†;
#10-12 Sol†
Cu dual
setscrew
#2-12 Str†;
#10-12 Sol†6.3 (159) —
L
RLA — — Al
setscrew #2-12 Al
setscrew #2-12 6.2 (158) HEB-LL
RLC-J — — Al
setscrew #2-12 Cu
setscrew #3-12 6.2 (158) —
RYA — — Al
setscrew #2-12 Al dual
setscrew #2-12†6.3 (159) —
* Stranded conductors unless otherwise noted.
† Not dual wire rated. One wire per opening.
Dimensions - in (mm):
A
10.375 (263)
Assembled length
Breakaway
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.
5
Technical Data 2127
Effective January 2019
Bussmann series HEB breakaway and non-breakaway
in-line fuse holders for UL 13/32” x 1-1/2” supplemental fuses
Eaton.com/bussmannseries
Breakaway lineside terminal data
Terminal type
Conductor data
Catalog
symbol
Wire range
No. per
terminal
Solid
Stranded
Cu crimp #8-16
#12-16
1
2
•
•
•
•-RLC-A
#6
#10
1
2
•
•
•
•-RLC-B
#4
#8
1
2
—
•
•
•-RLC-C††
Cu setscrew #3-12
#10-12
1
1
—
•
•
—-RLC-J
Cu dual setscrew #2-12
#10-12
2†
2†
—
•
•
—-RYC
Al setscrew
#2-12 1 • • -RLA
Al dual setscrew
#2-12 2†• • -RYA
Breakaway loadside terminal data
Terminal type
Conductor data
Catalog symbol
[Load /Line
(2) & (3)]
Wire range
No. per
terminal
Solid
Stranded
Cu crimp
#8-16
#10-16
1
2
•
•
•
•A
#6
#10
1
2
•
•
•
•B
Cu setscrew
#3-12
#10-12
1
1
—
•
•
—J
Cu dual setscrew
#2-12
#10-12
2†
2†
—
•
•
—K
Al setscrew
#2-12 1 • • L
† Not dual wire rated. One wire per opening.
†† Fuse holder assemblies using this terminal are not RoHS compliant.
Bussmann series HEB breakaway and non-breakaway
in-line fuse holders for UL 13/32” x 1-1/2” supplemental fuses
Technical Data 2127
Effective January 2019
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
Eaton.com
Bussmann Division
114 Old State Road
Ellisville, MO 63021
United States
Eaton.com/bussmannseries
© 2019 Eaton
All Rights Reserved
Printed in USA
Publication No. 2127 - BU-SB15154
January 2019
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.
CSA is a registered trademark of the Canadian
Standards Group.
Sta-Kon is a registered trademark of Thomas
& Betts.
UL is a registered trademark of the
Underwriters Laboratories, Inc.
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
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.
Recommended crimping tools
A wide variety of crimping tools can be used with the HEB fuse
holders. Some of the commercially available tools are listed in the
table below. This list is not intended to exclude the use of other
crimping tools that can provide similar crimps or indents.
HEB terminal T & B P/N (Die)
AWT-111M (Die C)
Sta-Kon ERG4002 (Die C)
BWT-115A (Die D)
CTBM5 (Grey Die)
WT-115A (Die E)
D
TBM5 (Brown Die)
TBM8 (Brown Die)
WT-115A (Die F)
ZWT-111M (Die A)
Sta-Kon ERG4002 (Die A)
N, P, Q, R, T TBM8 (Orange Die)
