Eaton 93PM Installation And Operation Manual

Also see for 93PM IBC-L: User and installation guide Manual Installation and operation manual User and installation guide User and installation guide

Contents

UPS Installation Plan and UnpackingEaton 93PM Emergency Lighting UPS (20–40 kW, 480V Four Wire – UL 924) Installation and Operation Manual P-164000569—Rev 2 www.eaton.com/powerquality 3-113.2.2 UPS System Power Wiring PreparationRead and understand the following notes while planning and performing the installation:WARNINGAs a result of the connected loads high leakage current is possible. Connection to earth ground isrequired for safety and proper product operation. Do not check UPS operation by any action thatincludes removal of the earth (ground) connection with loads attached.l Refer to national and local electrical codes for acceptable external wiring practices.l To allow for future power upgrades, Eaton recommends installing the UPS using wiring and externalovercurrent protection breakers sized for the fully rated UPS kW frame size installed instead of the deratedkW ordered. Wiring for the maximum kW frame size will allow a full power rating upgrade without having tomodify the site wiring infrastructure.l For external wiring, use 75°C copper wire. Wire sizes listed in Table 3-4 are for copper wiring only. If wire isrun in an ambient temperature greater than 30°C, larger size wire may be necessary. Wire sizes are basedon using the specified breakers.l The AC output and output ground wiring to the critical load should be sized the same as the UPS rectifier,bypass, and rectifier and bypass ground wiring if the recommended output breaker listed in Table 3-8 is notinstalled in the system.l Recommended wire sizes are based on NFPA National Electrical Code ® (NEC®) 70 Table 310.15(B)(16) 75°Campacity with 30°C ambient correction factors.l The neutral conductor is sized the same as the phase conductor for balanced and resistive loads. Non-linearloads, up to the maximum of 1.5x the load current, require a larger neutral conductor and should be sized inaccordance with NFPA NEC 70 Article 310.15(B)(5).l Connect rectifier input to a 3 wire, grounded Wye source. A neutral conductor is not used from therectifier source.l Supported single source, single or dual feed power sources:- 3-wire grounded Wye (TN,TT)- 4-wire grounded Wye (TN,TT) – Bypass Inputl Supported dual source, dual feed power sources:- 3-wire grounded Wye (TN, TT)- 4-wire grounded Wye (TN, TT) – Bypass InputCAUTIONSINGLE HIGH IMPEDANCE GROUND SOURCE – In North American installations, the neutralconductor from the high impedance ground source of supply CANNOT be used.l Phase rotation must be clockwise starting with phase A (rotation A,B,C).l Material and labor for external wiring requirements are to be supplied by designated personnel.NOTE 1 Refer to the Eaton 93PM Sidecar Integrated Accessory Cabinet-Bypass Installationand Operation (50 kW and 100 kW SIAC-B) Manual, listed in paragraph 1.8, forSIAC-B power wiring preparation and requirements.