SMARTZONE UPS INSTALLATION MANUAL
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k. Power ON all UPS output breakers, refer to the SmartZone 5-20kVA UPS User
Manual for the location of the output breakers on each UPS unit.
l. Power ON all UPS input breakers, refer to the SmartZone 5-20kVAUPS User
Manual for the location of the input breakers on each UPS unit.
m. Remove the lock out tag out from the breaker panel and turn ON the panel
breaker(s) for the UPS system.
n. The system should start to power up, refer to the SmartZone 5-20kVA UPS
User Manual to properly configure the system for use.
Optional MBS for 3-Phase UPS
This section provides the electrical connections for the UPS unit to be optionally
connected through a Maintenance Bypass Switch. The optional Maintenance Bypass
Switch allows the UPS to be totally isolated and removed from the system to perform
periodic maintenance.
All 3-phase UPS units may optionally be connected through a Maintenance Bypass
Switch unit. Figures 73 through 76 show the high-level power connection diagrams of
the UPS system with the Maintenance Bypass Switch. Select the appropriate figure
depending on the UPS system being deployed (single feed or dual feed, 3-phase in and
single-phase out or 3-phase in and 3-phase out).
This section provides the electrical connections for Single Mode System with a 3-Phase
input and optionally connected as a Single-Phase or a 3-Phase Output. The MBS is not
supported in a Parallel Mode System.
•
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.
•
The MBS is part of the system and must maintain a connected earth ground (MBS,
UPS, EBP, loads).
