Don,
I'm not sure of all the terminologies involved, (Trying not to mention a Brand Name) but the Equipment I am talking is a Manual transfer switch with say 6 single-pole/double-throw switches. It is prewired and gets attached to a residential Panelboard. It has a short length of Greenfield with a switchleg pair for each circuit and 1 common neutral. There was no ground wire.
There is a twistlock (4 wire)120/240 volt power supply cordset that gets plugged into the 240 volt outlet on the Generator. It was some time ago so I don't remember the exact situation, except that the voltages were very different L-N on the different legs.
It could have been a situation where there was only a 3 wire 240v outlet on the Generator if that makes any more sense.
