... ,15KW,22KW,28KW,33KW,39KW,44KW.Auxiliary power source: 220VACnput signal: 4~20mA,1~5VDC,2~10VDC,0~20mA,0~5VDC ... board damage when main circuit malfunctions.* Using European detachable control signal connector for easy replacement without re-wiring installation.* CE CERTIFICATION.