Mammoth V-Cube Slim F-Series Sizes 180 to 350 User Manual
Page 18
Mammoth V-Cube Slim IOM, MAMM-VCS-IOM-4FA (October 2013) 18
Conductor size installed in
connector
Slotted head No. 10 or larger*
Hexagonal head - external
drive socket wrench
AWG or
kcmil
(mm
2
)
Slot width to
3/64 inch (1.2 mm) or
slot length to 1/4 inch
Slot width – over
3/4 inch (1.2 mm) or
slot length over 1/4
inch
Split-bolt
connectors
Other
connectors
30 – 10
(0.05 – 5.3)
20 (2.3)
35 (4.0)
80 (9.0)
75 (8.5)
8
-8.4
25 (2.8)
40 (4.5)
80 (9.0)
75 (8.5)
6 – 4
(13.3 – 21.2)
35 (4.0)
45 (5.1)
165 (18.6)
110 (12.4)
3
-26.7
35 (4.0)
50 (5.6)
275 (31.1)
150 (16.9)
2
-33.6
40 (4.5)
50 (5.6)
275 (31.1)
150 (16.9)
1
-42.4
–
50 (5.6)
275 (31.1)
150 (16.9)
1/0 – 2/0
(53.5 – 67.4)
–
50 (5.6)
385 (43.5)
180 (20.3)
3/0 – 4/0
(85.0 – 107.2)
–
50 (5.6)
500 (56.5)
250 (28.2)
250 – 350
(127 – 177)
–
50 (5.6)
650 (73.4)
325 (36.7)
400
-203
–
50 (5.6)
825 (93.2)
325 (36.7)
500
-253
–
50 (5.6)
825 (93.2)
375 (42.4)
600 – 750
(304 – 380)
–
50 (5.6)
1000 (113.0)
375 (42.4)
800 –
1000
(406 – 508)
–
50 (5.6)
1100 (124.3)
500 (56.5)
1250 –
2000
(635 – 1016)
–
–
1100 (124.3)
600 (67.8)
*For values of slot width or length not corresponding to those specified, select the largest torque value associated with
the conductor size. Slot width is the nominal design value. Slot length is measured at the bottom of the slot.
Table 7: UL 486A tightening torques for slotted head
screws smaller than No. 10 intended for use with No. 8
AWG or smaller conductors
Slot length of screw
b
Slot width of screw
a
Smaller than
3/64 inch (1.2
mm)
3/64 inch (1.2 mm)
and larger
Inch
(mm)
pound-
inch
(N-m)
pound-
inch
(N-m)
Less than 5/32
(4)
7
(0.79)
9
(1.0)
5/32
(4)
7
(0.79)
12
(1.4)
3/16
(4.8)
7
(0.79)
12
(1.4)
7/32
(5.6)
7
(0.79)
12
(1.4)
1/4
(6.4)
9
(1.0)
12
(1.4)
9/32
(7.1)
15
(1.7)
Above 9/32
(7.1)
20
(2.3)
a Slot width is the nominal design value.
b For slot lengths of intermediate values, select torques pertaining to next
shorter slot length. Also see note to Table 7.4 for screws with multiple
tightening means. Slot length is to be measured at the bottom of the slot.
Table 8: UL 486A tightening torques for socket head
screws
Socket Size Across
Flats -- Inches
Tightening Torque,
Pound Inches
1/8
45
5/32
100
3/16
120
7/32
150
1/4
200
5/16
275
3/8
375
1/2
500
9/16
600