ATRT-03 - 3-Phase Transformer Turns-Ratio Tester

The ATRT-03A is an AC/DC-powered 3-phase, transformer turns-ratio tester. The ATRT-03A can operate from a wide range of voltages and from various power sources including 85 to 264 VAC; 110 to 370 VDC; and 12 VDC (car battery).