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Wire Size for Unit
Connection
2
AWG, kcmil (mm
)
18-10
(0.82-5.3)
8
(8.4)
6-4
(13.3-21.2)
3
(26.7)
2
(33.6)
1
(42.4)
1/0-2/0
(53.5-67.4)
3/0-4/0
(85.0-107.2)
250-350
(127-177)
400
(203)
500
(253)
600-750
(304-380)
800-1000
(406-508)
1250-2000
(635-1016)
* 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 to be measured at the bottom of the slot.
Note:
If a connector has a clamp screw such as a slotted, hexagonal head screw with more than one means of tightening, test the connector
using both applicable torque values.
Figure 9
Tightening Torque for Screw-Type Pressure Wire Connectors
TP-7203
4/23
Slot Head 4.7 mm (No. 10) or Larger*
Slot Width <1.2 mm (0.047 in.)
Slot Length <6.4 mm (0.25 in.)
2.3 (20)
2.8 (25)
4.0 (35)
4.0 (35)
4.5 (40)
—
—
—
—
—
—
—
—
—
Tightening Torque, Nm (in. lb.)
Slot Width >1.2 mm (0.047 in.)
Slot Length >6.4 mm (0.25 in.)
4.0 (35)
4.5 (40)
5.1 (45)
5.6 (50)
5.6 (50)
5.6 (50)
5.6 (50)
5.6 (50)
5.6 (50)
5.6 (50)
5.6 (50)
5.6 (50)
5.6 (50)
—
Hexagonal Head—External Drive
Socket Wrench
Split-Bolt
Other
Connectors
Connections
9.0
(80)
8.5
9.0
(80)
8.5
18.6
(165)
12.4
31.1
(275)
16.9
31.1
(275)
16.9
31.1
(275)
16.9
43.5
(385)
20.3
56.5
(500)
28.2
73.4
(650)
36.7
93.2
(825)
36.7
93.2
(825)
42.4
113.0
(1000)
42.4
124.3
(1100)
56.5
124.3
(1100)
67.8
(75)
(75)
(110)
(150)
(150)
(150)
(180)
(250)
(325)
(325)
(375)
(375)
(500)
(600)
23
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