... and VASuitable for Sine, Square, Step waveDescription The 3250 series AC&DC Load Module is suitable for Sine, Square, Step wave testing ... UPS, AVR, D/A inverter, especially for step or square waveform U.U.T.The 3250 series Module has it own control ... production, QC test throughput.3250 Series are suitable for AC/DC, DC/DC, DC/AC testing, UPS output loading test, DC, 40~70Hz Power Transformer, and ...