The ABB A16-40L-00-42 is a 4-pole lighting contactor rated 30 A at 600 V, with a 277 V coil — built for switching lighting banks in commercial and industrial panels. It carries the product name ABBG Lighting on the line.
Mounts in a standard panel enclosure; the 4-pole configuration handles three-phase plus neutral switching for lighting circuits. The 277 V coil matches common North American lighting control voltages. Rated 30 A continuous at 600 V covers most commercial lighting branch circuits.