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72 Installation Guide APC Silcon 60-80kW 400V UPS
990-4051
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6.7.3 Wiring up UPS with External Yyn0 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.