Installation
Liebert
®
APS
™
26
To connect the cable:
1. Remove the knockouts at the junction box (see Figure 31) and pull the cables through them,
leaving some slack for installation.
Figure 31 Knockouts
2. Connect the cables to the corresponding terminal of the power input and output terminals.
3. Tighten the screws to 4.52Nm (40 in-lb) with a 13mm (1/2") torque wrench.
4. Respectively, secure the conduit of the input/output cables through the cable bridges on the rear
panel of the UPS (see Figure 31).
The connection methods in the single-phase input mode and the 3-phase input mode are shown in
Figures 32 and 33, respectively. Installation of the factory-provided copper bar is essential in the
single-phase input mode. The copper busbar is in the accessory bag included with the UPS.
Figure 32 Connection in single-phase input
NOTE
Input and output cables must be run in separate conduit before cable connection.
For the user whose input power grid is L-L line voltage, the input N of the power input and
output terminals will connect live wire, so the output N of the power input and output
terminals is also live wire.
Output Cable
Knockout
Input Cable
Knockout
OUTPUT INPUT
PE NPE N L L2L3
L1
200/208/220/230/240
200/208/220/230/240
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