IV331 Rev.000 SIEL S.p.A.
Data di emissione: 2011-08-22
Pag. 69 di 258 + FR
E
LECTRICAL CONNECTIONS
WARNING: a 4-wire three-phase distribution system is required.
The UPS must be connected to a power supply line made up of 3 n PE (protective earth) of TT, TN
or IT type. Therefore, the phase rotation must be respected.
Optional TRANSFORMER BOXES to convert the distribution systems from 3 wires to 4 wires are available.
D
IAGRAMS OF CONNECTIONS TO THE ELECTRICAL SYSTEM
UPS with no modification of the neutral regime
UPS with input galvanic isolation
UPS with output galvanic isolation
Summary of Contents for Safepower-Evo-HF 30
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