... ,9KW,15KW,22KW,28KW,33KW,39KW,44KW.Auxiliary power source: 220VACnput signal: 4~20mA,1~5VDC,2~10VDC,0~20mA, ... not operate the unit exceed 70% of rated output in case of abovementioned poor ambient conditions. Load Test:1.The SCR ... unit will not well functioned in case of less output load (0.6 Amp).2.Please connect ...