The electronics in the ZEX Programmable TPS Switch will handle up to 10 Amps of current per blue wire. As an option, these two blue wire leads may be connected together to create a single wire lead that can handle up to 20 Amps. If the current requirements of your particular application require a greater current capacity than these two options, you must use an external relay to avoid burning out the electronics in the Programmable TPS Module
