PILZ S1UM 110-130VAC UM 0.1-500VAC/DC – 827250 | JUAL PILZ S1UM 110-130VAC UM 0.1-500VAC/DC – 827250 – Voltage monitoring relay, to monitor min. and max. voltage values, 12 measuring ranges 0.1 – 500 V AC/DC selectable, 0.40 -400 Hz, width = 22.5 mm, UB = 110 – 130 V AC.