I have had numerous customers call me over the years with their OEM EMS systems, stating 30 amp service, when they are plugged into 50 amp service. That is because the CG has CHEATED 50 amp service and not correct phased 50 amp(100 amps total on 2- 50 amp breakers). ALWAYS, The CG says they are 50 amp service. The customer comes in and I plug into our 50 amp and show him the EMS shows 50 amp service. He then realized the CG either lied or did not understand 50 amp service. The flip side is, the customer calls me and I tell him how to check the CG 50 amp plug for 50 amp service and it is ALWAYS cheated 50 amp. For any CG to advertise 50 amp hook ups and CHARGE for 50 amp hook ups and NOT supply a total of 100 amp supply is fraud. Doug
PS, yes it is common, but unless you have a 50 amp built in EMS or check it yourself, most people would never have a clue. It is usually older CG's that would cost them tens of thousands of dollars to correctly upgrade to safe 50 amp service
