1,Protector of combined power source 2,Protector of video signal and control signal 3,spd,suger protoctor Power sourecVideo signalControl signalMax.Operation Voltage320V12V24VLoad current5A Protect circuitAC220V/DC24V Rating8/20/μsIn10KA5KA5KAMax. discharge current8/20/μsIsn20KA10KA10KALimit Voltage8/20/μsUp 10KA≤1.2K Limit Voltage1KV/μsUp 0.072KA Line to Line≤37VLine to Line≤55VLimit Voltage8/20 ...