Three-phase AC voltage stabilizer
MINISTAB-STEROSTAB Y
IREM SPA
The Y models are equipped with one stabilizing circuit for each phase, hence they are suitable for unbalanced mains and a maximum unbalance between phases up to 100%. For their correct operation, neutral is mandatory.
Therefore, the input line must have 4 wires (3 phases + neutral). If neutral is not available, create it by inserting an isolating transformer (input: delta - output star+neutral) upstream the stabilizer.
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