HP Parallel Uninterruptible Power System - Manual (Page 29)

UPS installation 29
Power Bus Bar
terminal block Terminal
position Power Bus Bar wire
function Terminal wire size
rating* Tightening torque
Output 1 Phase 1 out 13.3 mm 2 (6 AWG)
to 177 mm 2 (350
kcmil)
31.1 Nm (275 lb in)
2 Phase 2 out 13.3 mm 2 (6 AWG)
to 177 mm 2 (350
kcmil)
31.1 Nm (275 lb in)
3 Phase 3 out 13.3 mm 2 (6 AWG)
to 177 mm 2 (350
kcmil)
31.1 Nm (275 lb in)
Input 4 Phase 1 in 13.3 mm 2 (6 AWG)
to 177 mm 2 (350
kcmil)
31.1 Nm (275 lb in)
5 Phase 2 in 13.3 mm 2 (6 AWG)
to 177 mm 2 (350
kcmil)
31.1 Nm (275 lb in)
6 Phase 3 in 13.3 mm 2 (6 AWG)
to 177 mm 2 (350
kcmil)
31.1 Nm (275 lb in)
Neutral 7 Neutral 13.3 mm 2 (6 AWG)
to 177 mm 2 (350
kcmil)
31.1 Nm (275 lb in)
8 Neutral 13.3 mm 2 (6 AWG)
to 177 mm 2 (350
kcmil)
31.1 Nm (275 lb in)
9 Neutral 13.3 mm 2 (6 AWG)
to 177 mm 2 (350
kcmil)
31.1 Nm (275 lb in)
Safety ground 10 Ground 18 mm 2 (4 AWG) to
215mm 2 (400 kcmil)
1.8 (16 lb in)
*Use 13.3 mm 2 (6 AWG) 90º C copper wire minimum.
Connecting the ground bonding cable
The ground bonding screw is provided as an attachment point for conductors. Use a ground bonding cable
if the rack contains any conductors for the purpose of functional grounding or bonding of ungrounded metal
parts.