... -2400W Technical Parameter 1,Separate excitaiton type PCB Type: HNE-FP-S(F means frequency,P means power, Example: HNE-40100 ... -S, This model of PCB is separatly-excited generator, applicable to ... protection, power adjustable; 2, Auto excitaiton type PCB Type HNE-FP-A(F means frequency, P means power; Example: HNE-40100 ...