How to reduce 30 amps to 5
Inrush Current Limiters (ICL) | Circuit Protection | DigiKey
https://www.digikey.com/products/en/circuit.../inrush-current-limiters-icl/1... 
CL, Active, 10 Ohms, ±25%, 5A, 180 mOhms, 0.770" (19.56mm), 0.328" (8.33mm), UL. SL22 2R515 Datasheet, SL22 2R515 - Ametherm, 570-1047-ND.