For BOM lines that depend on this order code, sourcing moves to the independent distribution channel.
The ABB A185-30-11-55 is a three-pole contactor from the A185 series, rated for 500 V.
The 500 V rating means this contactor is suited for 400 VAC three-phase systems common in industrial motor control, with headroom for voltage transients. The 3-pole configuration handles three-phase motor loads directly.