VITAL CARAVAN SAFETY started with the RVD and now is only with the RVD by having REVERSE POLARITY REJECTION where with a caravan or RV that travels the country you cannot be sure that where you stop and plug into power supplied by others that the power is supplied correctly and if it is not then you may suffer damage to your RCD/RCBO but with an RVD-EMR-16A fitted at the inlet to your Recreation Vehicle you have the only product that can give you the VITAL CARAVAN SAFETY.
The RVD-EMR-16A is a combined RVD/RCBO to cover both Isolated Power and Mains Power and give REVERSE POLARITY REJECTION.
The RVD_EMR-16A works within the parameters of power supply to AS/NZS3000 at 240V +10% -5% so if you are expecting any appliance to work well under the AS/NZS3000 required parameters then please be aware that it will not happen.