28
11.2 Terminal Blocks and Power Cables
The terminal blocks are shown in Figure 11.2 and are located inside at the bottom of each
100/125/150/180/225kVA UPS.
External cable size and tightening torque are recommended in the Table 11.1~11.5. Only copper wires
are allowed for external cables.
Figure 11.2 - Terminal Blocks of 100/125/150/180/225kVA UPS.
Table 11.1 Recommended Cable Size and Tightening Torque for 100kVA UPS.
Block Number
Cable Size
Tightening Torque
1
AWG 1/0 or larger
3.2 kg-m (275 in-lbs)
2
AWG 1/0 or larger
3.2 kg-m (275 in-lbs)
3
AWG 1/0 or larger
3.2 kg-m (275 in-lbs)
4
AWG 1/0 or larger
3.2 kg-m (275 in-lbs)
5
AWG 1/0 or larger
3.2 kg-m (275 in-lbs)
6
AWG 1/0 or larger
3.2 kg-m (275 in-lbs)
7
AWG 1/0 or larger
3.2 kg-m (275 in-lbs)
8
AWG 1/0 or larger
3.2 kg-m (275 in-lbs)
9
AWG 1/0 or larger
3.2 kg-m (275 in-lbs)
10
AWG 1/0 or larger
3.2 kg-m (275 in-lbs)
11
AWG 1/0 or larger
3.2 kg-m (275 in-lbs)
*12
AWG 3/0 or larger
3.2 kg-m (275 in-lbs)
*13
AWG 3/0 or larger
3.2 kg-m (275 in-lbs)
NOTE: Maximum cable size is 350MCM.
*One battery string (consult factory if using multiple battery strings).
1
2
3
6
10
4
5
7
8
9
11
12
13
U
V
W
U
V
W
N
+
-
N
W
V
U
AC INPUT
3-Phase 3-wire
BYPASS INPUT
3-Phase 4-wire
BATTERY
AC OUTPUT
3-Phase 4-wire