hi, i have an ELC panel that have a MCB at an input with 3 connecting port (I think they are for 3 phase from generator) but no port for neutral ( why?), at other part it consist of 4 connector for heater (i think 3 for phase and 1 for neutral) . Where should the community load be connected? If it should be before MCB then what is the use of MCB at ELC input only? Since there is no place for cable to be connected to go toward community side inside the ELC panel? Thanks in advance.