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Transformer intended for personal protection. The primary and secondary windings of the transformer are separated by reinforced or doubled insulation. Safety voltage transformers create a supply for SELV circuits (Ueff ≤ 50 V). ST31x safety voltage transformers have two secondary connection options 12VAC and 24VAC. Only one can be used at a time. The secondary voltages of several transformers cannot be connected together. The transformers comply with the EN60472 standard.
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