Answer Posted / kunal

uninterrupt power supply is mainly use for short time .
means according to ups VA it gives backup.
ups is also two types : on line and offline . online ups
having high volt and amp for long time backup with with
high dc voltage.but ups start with 12v dc with 7 amp.
but inverter is startwith 12v,24,dc to 36v dc and 120amp to
180amp battery with long time backup.

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is IS says that neutral should be brought to switch box. and this one is a recomended practice

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