Maintenance Bypass Cabinet
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4.0 MAINTENANCE BYPASS CABINET
The Maintenance Bypass Cabinet is designed to operate in UPS mode, bypass mode and maintenance
mode. The mode is selected using the Bypass Switch.
Figure 14 Single UPS with external Maintenance Bypass Cabinet—typical configuration
4.1 Bypass Switch
The Bypass Switch allows easy and rapid transfer of connected loads between the UPS and Bypass
source.
4.2 UPS Mode
While the Maintenance Bypass Cabinet is in UPS Mode, the UPS is supplying the connected load
with continuous high quality AC power. In this mode of operation, the load is protected by the UPS.
The Bypass Switch is in the NORMAL position for this mode.
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