Eaton 9155 UPS - UPS Only Installation

Eaton 9155 UPS (8–15 kVA) User’s Guide 164201553—Rev H0 31
UPS Configuration
Paragraph Section
UPS only
4.3.2 UPS Only Installation
UPS with an input isolation transformer
4.3.3 Input Isolation Transformer Installation
UPS with a UPS-Mounted Bypass Switch
4.3.4 UPS-Mounted Bypass Switch Installation
UPS with a Bypass Power Module (BPM) Refer to the Eaton Bypass Power Module (BPM) User’s Guide.
Parallel UPS configuration
Refer to the Eaton 9155 Parallel UPS (8-15 kVA) User's Guide.
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The Eaton 9155 has the following power connections:
• 2-phase (L1 and L2), neutral, and ground connection for rectifier/bypass input
• 2-phase (L1 and L2), neutral, and ground connection for load output
The nominal input/output voltages are:
• 100/200, 110/220, or 120/240 Vac with 180° phase displacement
• 120/208 or 127/220 Vac with 120° phase displacement
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 UPS:
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.
Compare the circuit breaker ratings and wire sizes to the specifications in Table 4.
NOTE To accommodate the feature of easy system expandability, it is recommended that
initial installation of the Eaton 9155 UPS contain wiring to support the maximum
capacity of the UPS cabinet.
3. Switch off utility power to the distribution point where the UPS will be connected. Be absolutely sure there
is no power.
4. Determine your equipment's grounding requirements according to your local electrical code.
5. Verify that the UPS battery circuit breaker is in the OFF position (see Figure 16).
UPS System Installation