Question

An electric motor of power $2kW$ is to be operated at mains of $220V$. Find the current rating of the fuse to be connected to the motor.

• A. 10 A
• B. 8 A
• C. 5 A
• D. 2 A

Answer 1

The correct option is A

10 A

Given $P=2kW$ = $2000W$, V = $220V$

Current drawn by the motor, $I=\frac{P}{V}=\frac{2000}{220}=9.09A$

So, we have to choose a fuse having an ampere rating higher than the current drawn by the motor. According to the standard ampere rating, we can choose a 10 A fuse.