What the 104 A rating means for a motor circuit
The AF116-30-00-14 is a three-pole contactor from ABB, rated for 104 A continuous at a coil supply of 250-500 V AC or DC. That 104 A figure is the conventional free-air thermal current (Ith) — the current the main poles can carry continuously without exceeding the temperature rise limit of the contactor housing. In a motor-starting application, the actual AC-3 switching current will be lower; the 104 A frame typically covers a motor full-load current in the 75-90 A range, depending on the duty cycle and ambient temperature inside the panel.
Panel fit and coil supply flexibility
The coil accepts 250-500 VAC or DC directly — no separate coil-supply transformer needed if the control voltage falls in that band. That wide-range coil is characteristic of ABB's AF series, which uses an electronic coil interface that holds in with DC after the initial AC pick-up.