XA16A-4N [AMPHENOL]
Ring Terminal;
Amphenol 
BURNDY
Substation
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.
Fig. 1
Fig. 2
CATALOG
NUMBER
FIG.
NO.
CONDUCTOR
B
C
G
H
J
L
T
W
NA15A-2N
NA15A-4N
NA16A-4N
NA17A-2N
NA17A-4N
NA18A-2N
NA18A-4N
NA19A-4N
NA20A-4N
NA22A-4N
1
1
2
1
1
2
1
2
1
1
1
1
3-1/2
3-1/2
3-3/4
4
1-7/8
3
1.50
1.50
1.60
1.76
1.76
2.05
2.05
2.19
2.43
2.94
3-3/8
3-3/8
3-3/8
3-7/8
3-7/8
4-1/2
4-1/2
5
1/2
1/2
1/2
1/2
1/2
5/8
5/8
5/8
5/8
5/8
6-3/4
6-3/4
7
3/8
3/8
1/2
1/2
1/2
1/2
1/2
3/4
3/4
7/8
3-1/16
3-1/16
3-7/16
3-11/16
3-11/16
4-1/2
G-29
1-1/4
1-1/2
1-1/2
2
3
2-1/2
3
7-1/2
7-1/2
7-1/2
7-1/2
7-3/4
8-3/8
9-3/8
4
4-1/4
4-1/4
4-1/2
5
2-3/4
3-1/8
3-3/4
4-3/8
5-1/4
2
4-1/2
2-1/2
3
5
5-1/2
6-1/4
5-5/8
4
6
6-5/8
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 centerline
of conductor.
Catalog Number*
STANDARD I.P.S.
(Schedule 40) With Guide
Conductor
C
J
L
T
XA15A-4N
XA16A-4N
XA18A-4N
XA19A-4N
XA20A-4N
XA21A-4N
XA22A-4N
XA24A-4N
1
1-1/4
2
3
12-3/4
13-5/8
15-1/2
17
3/8
1/2
1/2
5/8
5/8
7/8
7/8
7/8
1/2
3
3
2-1/2
3
3-3/4
4-3/8
4-3/4
5-1/4
6-1/2
18-5/8
20
5/8
3-1/2
4
21
5
24-1/8
* Conforms to 4-hole NEMA mounting standards.
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