Question

A 1.25Kw Heater works on 220V Supply. Then What is the Current rating For a Suitable Fuze have?​

Answer 1

P = 1.25 kw

=1.25 ×1000 w

= 1250w

V= 220v

P= V × I

1250 = 220 × I

I = 1250/220

I = 5.6 A

So , it needs a fuse of fuse rating of 6 and more than 6.

Hope it's help you