Eaton 9395 Maintenance Bypass Module Installation and Operation Manual 164201719 Rev 3 www.eaton.com/powerquality 2-1Chapter 2 Safety WarningsIMPORTANT SAFETY INSTRUCTIONSSAVE THESE INSTRUCTIONSThis manual contains important instructions that should be followed during installation and maintenance ofthe MBM. Read all instructions before operating the equipment and save this manual for future reference.The MBM cabinet is designed for industrial or computer room applications, and contains safety shieldsbehind the doors. However, the UPS system is a sophisticated power system and should be handled withappropriate care.D A N G E RThis UPS system contains LETHAL VOLTAGES. All repairs and service should be performed byAUTHORIZED SERVICE PERSONNEL ONLY. There are NO USER SERVICEABLE PARTS inside theMBM.W A R N I N G The UPS system contains its own energy source (batteries). The output terminals may carry live voltageeven when the UPS is disconnected from an AC source. To reduce the risk of fire or electric shock, install this MBM in a temperature and humidity controlled,indoor environment, free of conductive contaminants. Ambient temperature must not exceed 40°C(104°F). Do not operate near water or excessive humidity (95% maximum). The system is not intended foroutdoor use. Ensure all power is disconnected before performing installation or service. ELECTRIC ENERGY HAZARD. Do not attempt to alter any wiring or connectors. Attempting to alter wiringcan cause injury.C A U T I O N Installation or servicing should be performed by qualified service personnel. Keep the MBM doors closed to ensure proper cooling airflow and to protect personnel from dangerousvoltages inside the unit. Do not install or operate the UPS system close to gas or electric heat sources. The operating environment should be maintained within the parameters stated in this manual. Keep surroundings uncluttered, clean, and free from excess moisture. Observe all DANGER, CAUTION, and WARNING notices affixed to the inside and outside of theequipment.Figure