2007 Master Catalog Full

BURNDY®

Products

Mechanical TYPES K3A-U, KK3A-U (Continued) A-27

AL9CU

Fig. 1

Fig. 2

Fig. 3

CATALOG NUMBER**

FIG. NO.

WIRE RANGE ALUMINUM OR COPPER

K3A2U-4* K3A25U-4* K3A27U-4N K3A29U-4N K3A31U-4N K3A36U-4N K3A40U-4N KK3A36U-4N KK3A40U-4N KK3A44U-4N

3 3 3 3 3 3 3 4 4 4

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

* 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

K

STUD HOLE SIZE

11/32 7/16

5/16 3/8

9/16

1/2

Fig. 4

D

L

1.63 2.09 3.00 3.00 3.00 3.22 3.03 3.00 3.34 3.34

2.19 2.91 3.88 4.00 4.31 4.69 4.75 5.63 6.19 6.19

DIMENSIONS N W E .34 .34

.63

1.59 1.94 2.81 2.81 3.00 3.63 4.81 4.22 5.34 4.75

.88 1.00

1.75

T

H

.19 .25 .31 .31 .31 .44 .50 .44 .56 .56

.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

375 275 375