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TYPE HFB-P1
BAR CLAMP
ASSEMBLY COMPONENTS
For Copper Bar
To build your own high strength clamp
assembly for multiple flat bar using type
HFB-P1 bar clamps & clamping hardware,
the following tables have been provided. The
clamp assembly eliminates the need for
drilling the flat bar and is used in indoor and
outdoor applications.
† Ordered separately from BURNDY
®
.
* Z = Space between the bar clamp contact surfaces.
* *See table below when ordering assembly clamping bolts
to specify correct bolt length in Cat. #.
Position for assembly
Bar Clamp
Assembly
(2) Req’d
for assembly
One Clamp Half
Bar Clamp
Bus Bar
“J”
Catalog
Run
Tap
Bolt
Number
‘A’
‘AA’
Dia.
L
W
HFB33P1
3.00
3.00
3/8
4.38
4.38
HFB44P1
4.00
4.00
1/2
5.75
5.75
HFB63P1
6.00
3.00
1/2
7.75
4.75
HFB66P1
6.00
6.00
5/8
8.12
8.12
HFB88P1
8.00
8.00
3/4
10.50
10.50
Copper
Bar Clamp Assembly Components
Bus Bar
Silicon Bronze Clamping Hardware
Width (Inches)
Bar Clamp
Bolts**
Nuts
Split Lockwashers
Run-A Tap-AA
Qty.
Cat. No.
Qty.
Cat. No.
Qty.
Cat. No.
Qty.
Cat. No.
3
3
2
HFB33P1
4
38 X (*) HEB
4
38CHEN
4
38SW
4
4
2
HFB44P1
4
50 X (*) HEB
4
50CHEN
4
50SW
6
3
2
HFB63P1
4
50 X (*) HEB
4
50CHEN
4
50SW
6
6
2
HFB66P1
4
62 X (*) HEB
4
62CHEN
4
62SW
8
8
2
HFB88P1
4
75 X (*) HEB
4
75CHEN
4
75SW
Bolt Length**
Clamp
‘J’
When
When
When
When
When
When
When
When
Number
Bolt Dia.
Z=1.25*
Z=1.50*
Z=1.75*
Z=2.00*
Z=2.25*
Z=2.50*
Z=2.75*
Z=3.00*
HFB33P1
3/8 (-16)
3.00
3.25
3.50
4.00
4.00
4.50
4.50
5.00
HFB44P1
1/2 (-13)
3.25
3.50
3.75
4.00
4.50
4.50
5.00
5.00
HFB63P1
1/2 (-13)
3.25
3.50
3.75
4.00
4.50
4.50
5.00
5.00
HFB66P1
5/8 (-11)
3.50
4.00
4.00
4.50
4.50
5.00
5.00
6.00
HFB88P1
3/4 (-10)
3.75
4.00
4.50
4.50
5.00
5.00
5.50
5.50
L-20
Blue highlighted items are industry standard and most frequently ordered.
Canada: 1-800-387-6487
www.burndy.com
US: 1-800-346-4175
Substation — Bolted
BURNDY
®