Página 35 - BURNDY

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A-27
BURNDY
®
Mechanical
US: 1-800-346-4175
www.burndy.com
Canada: 1-800-387-6487
Blue highlighted items are industry standard and most frequently ordered.
TYPES K3A-U, KK3A-U
(Continued)
* 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
Fig. 3
Fig. 4
AL9CU
Wire Range
Stud
Recommended
Catalog
Fig.
Aluminum or
Hole
Dimensions
Tightening
Number**
No.
Copper
K Size
D L
N W E
T
H
Torque in-lb
K3A2U-4*
3
Three: 14 Str. - 2 Str.
11/32 5/16 1.63 2.19 .34 1.59 .88
.19
.62
K3A25U-4
*
3
Three: 14 Str. - 1/0 Str.
7/16 3/8
2.09 2.91 .34 1.94 1.00 .25
.88
50
K3A27U-4N
3
Three: 6 Str. - 3/0 Str.
3.00 3.88
2.81
.31 1.12
K3A29U-4N
3
Three: 6 Str. - 250 kcmil
3.00 4.00
2.81
.31 1.19
275
K3A31U-4N
3
Three: 6 Str. - 350 kcmil
3.00 4.31
3.00
.31 1.38
K3A36U-4N
3
Three: 2 Str. - 600 kcmil
3.22 4.69
3.63
.44 1.56
K3A40U-4N
3
Three: 300 - 800 kcmil
9/16 1/2
3.03 4.75
.63
4.81
1.75
.50 1.94
375
KK3A36U-4N
4
Three: 2 Str. - 600 kcmil
3.00 5.63
4.22
.44 1.69
KK3A40U-4N
4
Three: 350 - 800 kcmil
3.34 6.19
5.34
.56 1.88
275
KK3A44U-4N
4
Three: 500 - 1000 kcmil
3.34 6.19
4.75
.56 1.88
375