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 6 104 5 7 8 9 11 12 13
U V
W
U V
W
N
+
-
N
W
VU
AC INPUT
3-Phase 3-wire
BYPASS INPUT
3-Phase 4-wire
BATTERY
AC OUTPUT
3-Phase 4-wire