BURNDY
Mechanical
TYPES K3A-U, KK3A-U
UNIVERSAL TERMINAL
A-26
(Three Conductor)
For Aluminum and
Copper Conductors
Dual-rated three-conductor lugs are con-
structed from high strength aluminum alloy
and electro tin-plated to provide low contact
resistance.
Fig. 1
Fig. 2
AL9CU
Fig. 3
CATALOG
NUMBER*
K3A2U-1*
K3A25U-2*
K3A26U-2N
K3A27U-2N
K3A29U-2N
K3A31U-2N
K3A36U-2N
KK3A36U-2N
KK3A40U-2N
KK3A44U-2N
FIG.
NO.
1
1
3
3
3
3
3
2
2
2
WIRE RANGE
ALUMINUM OR
COPPER
Three: 14 STR. - 2 STR.
Three: 14 STR. - 1/0 STR.
Three: 14 STR. - 2/0 STR.
Three: 6 STR. - 3/0 STR.
Three: 6 STR. - 250
Three: 6 STR. - 350
Three: 2 STR. - 600
Three: 2 STR. - 600
Three: 300 - 800
Three: 500 - 1000
K
11/32
7/16
STUD
HOLE
SIZE
5/16
3/8
D
1.63
2.09
3.06
3.00
3.00
3.00
3.22
3.00
3.03
3.34
L
2.19
2.91
3.75
3.88
4.00
4.31
4.69
5.63
5.69
6.19
N
.34
.34
.63
.63
.63
.63
.63
.56
.63
.63
DIMENSIONS
W
E
1.59
1.94
1.95
2.81
2.81
3.00
3.63
4.22
4.81
4.75
.88
1.00
T
.19
.25
.19
.31
.31
.31
.44
.44
.50
.56
H
.62
.88
1.79
1.12
1.19
1.38
1.56
1.69
1.94
1.88
RECOMMENDED
TIGHTENING
▲
TORQUE in-lb
50
275
9/16
1/2
1.75
375
* Slotted screw.
** ‘‘N” indicates NEMA standard stud holes.
▲
Listed torque values are for maximum conductor sizes
accommodated.
Consult UL486 Tables 7-4, 7-5, 7-6 for smaller conductor
sizes. All 4N items
See note page A-2
BURNDY
Mechanical
TYPES K3A-U, KK3A-U
(Continued)
A-27
AL9CU
Fig. 1
Fig. 2
Fig. 3
Fig. 4
CATALOG
NUMBER**
K3A2U-4*
K3A25U-4*
K3A27U-4N
K3A29U-4N
K3A31U-4N
K3A36U-4N
K3A40U-4N
KK3A36U-4N
KK3A40U-4N
KK3A44U-4N
FIG.
NO.
3
3
3
3
3
3
3
4
4
4
WIRE RANGE
ALUMINUM OR
COPPER
Three: 14 STR. - 2 STR.
Three: 14 STR. - 1/0 STR.
Three: 6 STR. - 3/0 STR.
Three: 6 STR. - 250
Three: 6 STR. - 350
Three: 2 STR. - 600
Three: 300 - 800
Three: 2 STR. - 600
Three: 350 - 800
Three: 500 - 1000
K
11/32
7/16
STUD
HOLE
SIZE
5/16
3/8
D
1.63
2.09
3.00
3.00
3.00
3.22
3.03
3.00
3.34
3.34
L
2.19
2.91
3.88
4.00
4.31
4.69
4.75
5.63
6.19
6.19
N
.34
.34
DIMENSIONS
W
E
1.59
1.94
2.81
2.81
3.00
3.63
4.81
4.22
5.34
4.75
.88
1.00
T
.19
.25
.31
.31
.31
.44
.50
.44
.56
.56
H
.62
.88
1.12
1.19
1.38
1.56
1.94
1.69
1.88
1.88
RECOMMENDED
TIGHTENING
▲
TORQUE in-lb
50
275
9/16
1/2
.63
1.75
375
275
375
* Slotted screw
** ‘‘N” indicates NEMA standard stud holes.
▲
Listed torque values are for maximum conductor sizes
accommodated. Consult UL486 Tables 7-4, 7-5, 7-6 for
smaller conductor sizes.
All 4N items
See note page A-2
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