The ABB 1SBL177001R1101 AF16-30-01-11 is a 3-pole contactor from the AF Series, rated 30 A with a 24 V ac/dc coil.
The 30 A rating is the continuous thermal current (Ith) for resistive loads; for motor duty (AC-3), the contactor is sized for 7.5 kW at 400/690 V. The 24 V ac/dc coil simplifies panel wiring — one coil supply covers both AC and DC control circuits, eliminating the need for separate coil voltage variants. The 3NO (three normally open) main contacts are standard for switching three-phase motor loads.