By wrapping multiple turns, can I increase the sensitivity or increase input current to allow relay to trip? For example, there is a CSR that trips at 0.3A = 300mA. I want to trip CSR when 3mA is sensed. Does that mean I need to wrap 100 turns to multiply current input?

 

What is the part No. of the CSR?
Max.

 

You'd need 100 times the number of original turns.