2 Safety instructionsDANGERImportant safety instructions!Keep these instructions!This document contains important instructions that must be obeyed during theinstallation, operation and maintenance of the UPS and the batteries. Read allinstructions before operating the equipment. Keep this manual for futurereference. These instructions are also available for download at www.eaton.eu/93pm.DANGEROperations inside the UPS must be done by an authorized Eaton CustomerService Engineer or by other qualified service personnel authorized by Eaton.There are no user-serviceable parts in the UPS.The UPS operates with mains, battery or bypass power. It contains componentsthat carry high currents and voltage. A properly installed enclosure is earthedand IP20 rated against electric shock and unwanted objects. The UPS is asophisticated power system and only qualified personnel can install and serviceit.DANGERThis UPS carries lethal voltages. All repairs and service must be done byauthorized personnel only. There are no user-serviceable parts inside theUPS.WARNINGThe UPS is powered by its own energy source (batteries). The outputterminals could be energized even when the UPS is disconnected from an ACsource. To reduce the risk of fire or electric shock, install the UPS in atemperature and humidity controlled, indoor environment that is free ofconductive contaminants. See temperature and humidity limits in Chapter9.The ambient temperature limit must not be exceeded. Do not operate theUPS near water or excessive humidity. The system is not intended foroutdoor use.Before you start any installation or service work, make sure that all AC andDC power sources are disconnected. Power can come from multiple sources.Also ensure system grounding / PE continuity.In a parallel system, the output terminals could be energized even when theUPS is turned off.Eaton 93PM UPS 30–200 kVA User's and installation guide© Eaton Corporation plc 2017. All rights reserved. Revision: 005 Document ID: P-164000249 10 (126)