I install and service these type of units all the time. The common method transfer power is to use a 2 pole double throw contactor with the normally open contacts on the shore power side. Just connect the coil to the shore power side. All input wiring should match input source current ( 10 ga for 30 a ) etc. Best wiring method is stranded wire in a raceway. If you must use Romex, used marine AC cable. It is like romex but with a heavy jacket and stranded conductors. Do not use solid conductors as the constant flex can break at joints and has a greater chance of insulation rub-thru. One more thing, make sure the neutral is NOT bonded to the ground anyware. If the generator is internally bonded, if the unit has a 120/240 feed it will require a 3 pole contactor or transfer switch.
Last edited by WESTUPLACE; 08/02/09 05:10 PM.
