ABB PCS100 UPS-I - Torque Settings and Bolt Order

PCS100 UPS-I User Manual 141
19.7 Torque settings and Bolt order
Following table shows torque settings recommended for the power cable connections.
Tightening Torque for Standard Bolts and Nuts
Diameter
(mm)
Pitch
(mm)
Torque Nm (lb ft)
Use only high tensile bolts
M5
0.8
4.5 (3.6)
M6 (battery
terminals)
1.0
4.0 (3.2) *
M6
1.0
7.2 (5.3)
M8
1.0
16 (11.8)
M10
1.25
28 (20.7)
M12
1.25
45 (33.2)
Table 19-2: Tightening torques
* Stainless steel screws in to copper battery terminal.
Must use insulated tool to avoid dangerous accidental
flashover.
Schnorr
Bolt
Flat Washer
Flat Washer
Nut
Figure 19-2: Bolt order