What input electrical specifications are required for the Deltaweld 452?

The 450 Amp Deltaweld 452 requires three-phase input at either 60 Hz or 50 Hz depending on the model. At 60 Hz, input amperes at rated output range from 25A at 575V to 72A at 200V. For 50 Hz models, input amperes range from 33A at 440V to 39A at 380V. Recommended input conductor sizes and fuse ratings vary by voltage; consult the Electrical Service Guide in Section 3-9 for your specific configuration. (Page 18)