The upstream circuit breaker for Normal AC and Bypass AC must be easilyaccessible. The unit can be disconnected from AC power source by opening thiscircuit breaker. This circuit breaker is used for backfeed protection and mustcomply with IEC/EN 62040-1 (the creepage and clearance distances shall meetthe basic insulation requirements for pollution degree 2).v Disconnection and overcurrent protection devices shall be provided by others forpermanently connected AC input (Normal AC and Bypass AC) and AC outputcircuits.v Check that the indications on the rating plate correspond to your AC poweredsystem and to the actual electrical consumption of all the equipment to beconnected to the system.v For PLUGGABLE EQUIPMENT, the socket-outlet shall be installed near theequipment and shall be easily accessible.v Never install the system near liquids or in an excessively damp environment.v Never let a foreign body penetrate inside the system.v Never block the ventilation grates of the system.v Never expose the system to direct sunlight or source of heat.v If the system must be stored prior to installation, storage must be in a dry place.v The admissible storage temperature range is -15ºC to +50ºC.v This unit is not designed to conform to ANSI/NFPA 75 and therefore is not foruse in ANSI/NFPA 75-certified data centers.v Although the UPS does not contain anti-backfeed (ABF) relays, some backfeedprotection is provided. For example, if some components are damaged in batterymode, the output voltage may feed back to the input. In this case, a currenttransformer (CT) is used to detect the bypass current feedback voltage. If acurrent backfeed fault condition is detected, the UPS will terminate the inverteroutput to avoid personal injury.Safety xv