Step-Down Transformer (50VA) SKU: PT-50VA $96.65 Quantity discounts available QuantityPrice Quantity -+ Add to Cart DetailsDetails To measure 480V delta systems (no neutral) or 347/600V wye, use the EV1000 High Voltage Sensor .208/240/277/480V to 120Vac, dual hub, 50VA UL Listed transformer. Used for powering 120V accessories from higher voltage systems.