How to Calculate Your Amperage Loads Controller Model Max Amperage Rating Custom Programmable Controllers 12 Stock Models Stock configurations 20, 40, 60, 80 and 100 Amp. Including 220v and international configurations. Custom controllers can be designed to handle unlimited Amp loads. 3 Track Chaser – Model 3TU-10 10 Amps max per receptacle/track 4 Track …