Typically in any residential House at the time of construction, the wiring would be divided in to two major circuits – a Lighting Circuit and a Heating Circuit.
Lighting Circuit: All the house lights, fans and wall sockets ( 2 PIN & 5 Amp 3-PIN Sockets ) in the Living Room & Bedrooms would be connected in the Lighting Circuit.
Heating Circuit: Appliances like Geysers, Fridge, Water Pump, Air Conditioners and 15 Amp 3-PIN Sockets given in the Kitchen for microwave, Grinder, etc. would be connected on a Heating Circuit.
In a majority of cases, customers opt for the UPS supply to be connected only to the Lighting Circuit.