Type DV: Dual Voltage
3/8″ and 1/2″ diameter heaters may require a larger diameter transition area at the lead end. Cartridge heaters can be designed using 3-wire series/parallel circuits for dual voltage applications. Whether the heater is run on a high or low voltage, the wattage will be the same. DV1 120/240 volts DV2 240/480 volts