... ,28KW,33KW,39KW,44KW.Auxiliary power source: 220VACnput signal: 4~20mA,1~5VDC,2~10VDC,0~20mA,0~5VDC,0~10VDC,Buffering time: Buffering ... installed in the front panel, easy for adjustment.* Multi-LED display panel makes the operating condition clear.* The auxiliary powers(AC1 ... ~60Hz. No need for selection or switch.* Automatic detection and display for power out of phase, SCR overheating, and fuse burn ...