I'm surprised that the transfer switch is considered the main panel (thus requiring the ground/neutral to be bonded in that panel) without a main breaker located in there. Transfer switch is on the grid side? Is that new code requirements that changed that or has that always been the case?
That transfer switch is not on the "grid side" of the system. It is on/downstream from the "load" side of the utility meter - the same place that a "traditional" main breaker/service disconnect would be located - and since it is the first disconnecting means AFTER the service entrance (meter), it IS the main/service disconnect/emergency disconnect (it must be properly labled as such). The main circuit breaker, located in the panel board (inside) is the overload protection device for the load(s). Furthermore, those GE 200A switches are rated as "Service Entrace Equipment", and therefore acceptable to use. The only discrepancy I can see, is that the utility-side lugs are not "guarded" (i.e., protected from contact) after the conductors are in place. This is an NEC requirement (for the last few years), but otherwise the installation should comply. I have installed a few of these exact same swithes on stand-by generator installations. Nice switch, but a bit pricey.
