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