Apc SILCON 990-4053 User Manual download pdf (Page 68)

68 Installation Guide APC Silcon 480kW 400V UPS

990-4053

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6.5.6 Wiring up UPS with External Optional Dyn11 Isolation Transformer at Input

WARNING!

Isolation transformer provides galvanic isolation between mains supply and load. Do not bypass

isolation transformer in order to avoid damaging circulation currents and to prevent load from

loosing galvanic isolation.

NOTICE!

Refer to local legal regulation for wiring information.

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Apc SILCON 990-4053 User Manual Page 68