SMARTZONE UPS INSTALLATION MANUAL
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Figure 75: Wiring Diagram for Dual Feed with 3-Phase Input and Single-Phase
Output
Figure 76: Wiring Diagram for Dual Feed with 3-Phase Input and 3-Phase Output
1. Connect the MBS to the input source.
a. The MBS unit has a hardwire input (UMB20K).
i. The wired connections must be appropriately sized and protected.
1. Refer to the table below for the properly rated breaker and wire
size in the cable used.
a. If the rated voltage is 400 V, multiply the currents by 0.95.
If the rated voltage is 415 V, multiply the currents by 0.92.
