INSTALLATIONEATON BladeUPS® (12 kVA) User's Guide 164201649 Rev 4www.eaton.com/powerquality42Standalone UPS InstallationNOTE Do not make unauthorized changes to the UPS; otherwise, damage may occur to your equipment andvoid your warranty.The BladeUPS modules require a dedicated branch circuit that meets the followingrequirements: 50A (BladeUPS 12 module) or 30A (BladeUPS 12i module) circuit with overcurrentprotection Three-phase, 4-wire plus ground, 208Y/120V nominal (BladeUPS 12 module) or400Y/230V nominal, 380–415 Vac acceptable (BladeUPS 12i module) 50/60 Hz Wall-mounted breaker that is readily accessible to the operatorTo install the UPS:1. Switch off utility power to the distribution point where the UPS will beconnected. Be absolutely sure there is no power.2. Verify that all circuit breakers are in the OFF (O) position.NOTE The load connector breaker controls the load connector only, not the output power cord.3. If you are installing power management software, connect your computer to theUPS communication port or optional X-Slot card (see page 77). For thecommunication port, use the supplied serial cable.4. If your rack has conductors for grounding or bonding of ungrounded metal parts,connect the ground cable (not included) to the ground bonding screw.See Figure 32 for the location of the ground bonding screw.5. If an emergency power-off (disconnect) switch is required by local codes, see“Remote Emergency Power-off” on page 83 to install the REPO switch beforepowering on the UPS.6. Continue to “Standalone UPS Initial Startup” on page 59.