length the longest plug 226 is configured to engage one of the receptacles 228 or 230 connected to the neutral conductor from either the primary or auxiliary power supply as a result when the hot receptacles are configured and positioned similarly to the neutral receptacles 228 230 the neutral connection is made first and broken last during switching between power supplies during removal and engagement of the switching member 220 the neutral conductor from the power supply is wired to one of the terminals 240 or 242 which is in turn connected to one of the plates on the receptacles 228 or 230 the other plate on each of the receptacles 228 or 230 is connected to an electrical conductor 122 which passes through an opening 124 in the housing 50 and is connected to the neutral bus in the panel 24 consequently the switching member 220 may selectively connect both neutral and power conducting leads from either the primary or auxiliary supply to either a neutral bus or a power bus 22 within the panel 24 it is contemplated that the switch 210 may have multiple configurations without deviating from the scope of the invention the switch 210 may have for example a single pole or multiple poles connecting power conductors to their respective bus 22 further the switch 210 may optionally provide a neutral connection the switching member 220.