SMARTZONE UPS INSTALLATION MANUAL
51
10-20kVA 3-Phase UPS and Associated EBP (U10N32V,
U10S32V, U15N32V, U15S32V, U20N32V, U20S32V, UVP480)
The 3-Phase systems may be configured as a Single Mode System or as a Parallel
Mode System. In addition, the output may be connected to single-phase loads or to 3-
Phase loads.
Single Mode System Configuration with 3-Phase or Single-Phase
Output
All UPS units by default are configured as a single mode system. A single mode system
is a single UPS connected to an AC power source and that UPS provides the AC power
to the load.
This section provides the electrical connections for Single Mode UPS system with a 3-
Phase input and optionally connected as a 3-Phase or a Single-Phase Output.
•
When selecting, connecting, and routing power cables, follow local safety
regulations and rules.
•
If external conditions such as cable layout or ambient temperatures change, verify
in accordance with the IEC-60364-5-52 or local regulations.
1. Connect the UPS to the input source.
a. All 3-phase UPS units (10-20kVA) have a hardwire input (U10N32V, U10S32V,
U15N32V, U15S32V, U20N32V, U20S32V).
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.
2. When the mains input and bypass input have the same input
power source (known as single feed), configure both types of
input power cables as mains input power cables. The cables
listed in the table must adhere to the following requirements:
a. Routing mode: Routing the cables over the cable ladder or
bracket in a single layer (IEC60364-5-52 middle E).
b. The maximum ambient temperature should be 30°C.
c. The AC voltage loss must be less than 3%, and the DC
voltage loss must be less than 1%.
d. Must use 90°C rated or higher copper flexible cable.
e. The AC power cable length cannot exceed 30m and the
DC power cable length cannot exceed 50m.
3. The cable must conform to the local wiring codes according to
