Answer Posted / tony

All the answers are actually wrong. MCBs can handle quite a larger current (2-15 times, depending on type) for short period of time so you don't consider inrush current.

Type B: 3-5 times
Type C: 5-10 times
Type D: 10-20 times

The breaker in the distribution box usually is dependent wire gauges. You can adjust the mcb with socket according to load.

Use type C for ac. Only use 1.5 times of the running current. I use 13A for 1.5 ton ac.

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