Motor Overload device

[lost4ever P.E.]

I thought the selected device would be 100 Amps, but the answer is 103.5 Amps.
Any help would be appreciate.

 

[akyip]

Read the question carefully - it is asking for the maximum trip current setting (also sometimes called the ultimate trip setting), which is not necessarily the same as the actual device size to be used.

 

[lost4ever P.E.]

@akyip, thanks.
I read twice and confuse. Now its clear.