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990-4045a
Installation Guide APC Silcon 240-320kW 400V UPS 67
6.5.4 Wiring up UPS with External Optional Dzn0 Isolation Transformer at Input
WARNING!
Isolation transformer provides galvanic isolation between mains supply and load. Load will loose
galvanic isolation if isolation transformer is bypassed.
NOTICE!
Refer to local legal regulation for wiring information.