Eaton 9355 Series - 4.3.2 Version 2 Tie Cabinet Parallel Installation

Eaton 9355 Parallel UPS (10/15 kVA) User's Guide 164201601—Rev E0 25
Figure 18. Version 1 Bypass AC Input Wiring
Line 1
Line 2
Line 3
20. Verify the phase rotation for each UPS and the bypass input.
21. Reinstall the internal cover removed in Step 6.
22. Reinstall the parallel tie cabinet front cover removed in Step 5.
23. Proceed to paragraph 4.3.3 Installing Options to continue the installation process.
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The Eaton 9355 UPS has the following power connections:
• 3–phase (L1, L2, and L3), neutral, and ground connection for rectifier/bypass input
• 3–phase (L1, L2, and L3), neutral, and ground connection for load output
The nominal input/output voltages are:
• 120/208 or 127/220 Vac
Output overcurrent protection and disconnect switch must be provided by others.
WARNING
Only qualified service personnel (such as a licensed electrician) should perform the UPS installation and initial
startup. Risk of electrical shock.
To hardwire the parallel system:
1. Verify that the electrical connections to the installation site have been properly installed.
2. A wall-mounted, user–supplied, readily–accessible disconnection device must be incorporated in the input
wiring.
UPS System Installation