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TYPE NA-A
TERMINAL
For Aluminum and Copper Tube
to Flat
Aluminum alloy terminal for joining copper or
aluminum tube to copper or aluminum pad.
Properly proportioned to minimize conductor
corrosion due to galvanic action. Drilling in
pad conforms to NEMA standards. One-
wrench installation. PENETROX™ joint com-
pound recommended on contact surfaces.
TYPE XA-A
EXPANSION TERMINAL
For Aluminum and Copper Tube
to Flat
Aluminum alloy expansion connector for join-
ing tube to copper or aluminum bar or equip-
ment pads. Flexible aluminum straps allow
longitudinal or lateral movement and carries
full current load of the joint. PENETROX™
joint compound recommended on contact
surfaces. Pad contact surface is on center-
line of conductor.
* Conforms to 4-hole NEMA mounting standards.
Fig. 1
Fig. 2
Catalog Number*
Standard I.P.S.
(Schedule 40) With Guide
Conductor
C
J
L
T
XA15A-4N
1
3
12-3/4
3/8
XA16A-4N
1-1/4
3
1/2
13-5/8
1/2
XA18A-4N
2
3
15-1/2
1/2
XA19A-4N
2-1/2
3-3/4
17
5/8
XA20A-4N
3
4-3/8
18-5/8
5/8
XA21A-4N
3-1/2
4-3/4
5/8
20
7/8
XA22A-4N
4
5-1/4
21
7/8
XA24A-4N
5
6-1/2
24-1/8
7/8
Catalog
Fig.
Number
Conductor
No.
B
C
G
H
J
L
T
W
NA15A-2N
1
2
3-1/2
1-7/8
1.50
3-3/8
1/2
6-3/4
3/8
3-1/16
NA15A-4N
1
1
3-1/2
3
1.50
3-3/8
1/2
6-3/4
3/8
3-1/16
NA16A-4N
1-1/4
1
3-3/4
3
1.60
3-3/8
1/2
7
1/2
3-7/16
NA17A-2N
1-1/2
2
4
2-1/2
1.76
3-7/8
1/2
7-1/2
1/2
3-11/16
NA17A-4N
1-1/2
1
4
3
1.76
3-7/8
1/2
7-1/2
1/2
3-11/16
NA18A-2N
2
2
4-1/4
2-3/4
2.05
4-1/2
5/8
7-1/2
1/2
4-1/2
NA18A-4N
2
1
4-1/4
3-1/8
2.05
4-1/2
5/8
7-1/2
1/2
4-1/2
NA19A-4N
2-1/2
1
4-1/2
3-3/4
2.19
5
5/8
7-3/4
3/4
5
NA20A-4N
3
1
5
4-3/8
2.43
5-1/2
5/8
8-3/8
3/4
5-5/8
NA22A-4N
4
1
6
5-1/4
2.94
6-1/4
5/8
9-3/8
7/8
6-5/8
L-25
Blue highlighted items are industry standard and most frequently ordered.
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