BURNDY
Mechanical
TYPE K3A-U
UNIVERSAL TERMINAL
A-27
(Three Conductor)
For Aluminum and
Copper Conductors
Fig. 1
Fig. 2
Dual-rated three-conductor lugs are con-
structed from high strength aluminum alloy
and electro tin-plated to provide low contact
resistance.
AL9CU
Fig. 3
Fig. 4
STUD
HOLE
SIZE
RECOMMENDED
TIGHTENING
TORQUE IN LBS.
DIMENSIONS
W
CATALOG
NUMBER**
FIG.
WIRE RANGE
K
ꢀ
NO. ALUMINUM OR COPPER
D
L
N
E
T
H
K3A2U-2*
1
1
1
1
1
1
1
2
2
2
Three: 14 STR.-2STR.
Three: 14 STR.-1/0 STR.
Three: 14STR.-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
11/32 5/16
1.63
2.09
3.06
3.00
3.00
3.00
3.22
3.00
3.03
3.34
2.19
2.91
3.75
3.88
4.00
4.31
4.69
5.63
5.69
6.19
.34
.34
.63
.63
.63
.63
.63
.56
.63
.63
1.59
1.94
1.95
2.81
2.81
3.00
3.63
4.22
4.81
4.75
.88
.19
.25
.19
.31
.31
.31
.44
.44
.50
.56
.62
50
50
K3A25U-2*
K3A26U-2N
K3A27U-2N
K3A29U-2N
K3A31U-2N
K3A36U-2N
KK3A36U-2N
KK3A40U-2N
KK3A44U-2N
7/16
9/16
9/16
9/16
9/16
9/16
9/16
9/16
9/16
3/8
1.00
1.75
1.75
1.75
1.75
1.75
1.75
1.75
1.75
.88
1.79
1.12
1.19
1.38
1.56
1.69
1.94
1.88
50
275
275
275
375
375
375
375
1/2
Three: 500-1000
*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