What it is and what it does
The ABB AF16ZR-30-22-21 is a 3-pole contactor rated 17 A, with a low-consumption 24 VAC/DC coil. The AF contactor series is designed for switching motor loads and resistive loads in control panels, with the ZR variant indicating the low-consumption electronic coil that holds in with minimal power draw — useful for PLC-driven panels where coil heating and power supply loading matter.