PCR6000WE2/WEA2 have two input models: three-phase three-wire (3P3W) and three-phase four-wire (3P4W).
The input voltage range for each model is as follows:
3P3W input model: 170 to 250 Vrms (3-phase line voltage)
3P4W input model: 323 to 519 Vrms (3-phase line voltage)
For the details, read the user’s manual – chapter of Specifications.
