Description
The Extech 480400 phase sequence tester has a nominal range of 40 to 600 volts for testing the phase orientation of three-phase power supplies in a frequency range of 15 to 400 Hz. The multi-line graphic LCD display indicates phase orientation (clockwise or counterclockwise) and whether each phase is active. No battery required. Includes cable, three large color-coded alligator clips, and carrying case.
Ref. 480400
