The Tranformer (UEA0-Series) is designed to tranforms line voltage (AC 230 V) into SELV Voltage (AC 24 V). The Transformer has a internal self-resetting primary and secondary fuse. The Transformer has secondary power supply ON/OFF switch. The Transformer has a visual operational mode LED for the secondary power supply. Available with18 VA / 0.75 A or 30 VA / 1.25 A.