Model PVM voltage transducers monitor the line-to-line voltage of three- and four-wire, three-phase electrical systems. The Model LVM monitors the phase-to-neutral voltage of four-wire electrical systems. These transducers can be used to monitor three-phase voltages of 120, 208, 240, 277, and 480V. They provide three separate 4-20 mA outputs that are proportional to the three-phase input voltages. The high accuracy, solid-state circuitry of these transducers is average responding calibrated to read RMS.