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Options/accessories – APC SILCON 990-4053 User Manual

Page 65

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Options/Accessories

990-4053

Installation Guide APC Silcon 480kW 400V UPS

65

6.5.3 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.