GE AF-600 FP User Manual page 53

Table 54.1 , Tightening torque for screws
Test wire size installed
in connector (AWG)
18-10
8
6-4
3
2
1
1/0 - 2/0
3/0-4/0
250-350
400
500
600-750
800-1000
1250-2000
Note : For values of slot width or length not corresponding to those specified, the largest torque value associated
with the conductor size shall be marked. Slot width is the normal design value. Slot length shall be measured at
the bottom of the slot
Table 54.2 , Tightening torque for slotted head screws smaller than No. 10 intended for use with 8
AWG or smaller conductors
Slot length of screw
<5/32
Above 9/32
For slot length of intermediate values, torques pertaining to next shorter length shall be utilized. For
a
screws with mulitple tightening means, the largest torques value associated with the conductor size
shall be marked. Slot length shall be measured at the bottom of the slot
Slot width is the nominal design value
b
DEH40603 – Page 7
Slotted head no 10 and large
Slot width - 0.047 inch
or less and slot length
1/4 inch or less
20
25
35
35
40
-
-
-
-
-
-
-
-
-
a
5/32
3/16
7/32
1/4
9/32
UL508
Tightening torque (lb in.)
Slot width - 0.047
inch or slot length - Split bolt connectors
over 1/4 inch
35
40
45
50
50
50
50
50
50
50
50
50
50
-
Tightening torque, lb.in
Slot width of screw smaller
b
than 0.047 in
7
7
7
7
9
-
-
53
Hexagonal head - external drive socket
wrench
other connectors
80
80
165
275
275
275
385
500
650
825
825
1000
1100
1100
Slot width of screw
and larger
9
12
12
12
12
15
20
AN 12-1007 Rev 05, 04/04/2012
75
75
110
150
150
150
180
250
325
375
375
375
500
600
0.047 in
b