[JRTJH]

The refrigerator (both gas/electric and 12 VDC compressor) use 12 VDC in the control circuits. The gas/electric also uses 120 VAC to power the electric heating element. The oven, if there are LED lights around the knobs, use 12 VDC. The slide motors, landing gear, furnace and awning all use 12 VDC motors. The range hood and bathroom vent fans are 12 VDC. The Air conditioner and the converter/charger are operated by 120 VAC, 60 cycles.

As for entertainment, most TV's are 120 VAC and the radio/stereo is 12 VDC.

Trailer lighting is 12 VDC as is the running lights/brake/tail lights.

All alternating current (AC) wiring is ROMEX (solid strand) with the exception of the flexible connection cable between the main trailer body and the slide body which is multi-strand copper cable.

All direct current (DC) wiring is multi-strand copper wire, usually individual wires rather than multiple insulated wire inside a common cable assembly.

The shore power cable is multi-strand AC cable. 3 conductors in 30 amp supply lines and 4 conductors in 50 amp supply lines.

The trailer umbilical connection to the tow vehicle uses a 7 pin cable. I believe the Austrailian/ NZ umbilical connection is either a 7 pin round connector which is wired differently from the US standard configuration or a 12 pin rectangular connector.

One major consideration (at least for me) is that the entry door is on the opposite side as is the awning. That means that entering or exiting the trailer while towing means being on the "active roadway side of the trailer" if parked on the side of a highway or in a parking lot.