ABB it has a large family of contacters: tripolar contacters and overload relays for engine startup and power switching (AF, minicontactors, AS), tetrapolars for switching the power (AF and minicontactors), auxiliary for the switching of auxiliary circuits (AS and minicontactors), for the switching of capacitors (UA.RA), CC.
The GJL1213001R0017 reference specifically is a power contacter to switch the AC power supply.
Its features are: Nominal control power voltage Us in CC: 12V, Drive voltage type: CC, nominal operating current Ie in CA-1, 400 V: 20A, nominal operating current Ie in CA-3, 400 V: 9A, nominal operating power in CA-3, 400 V: 4kW, assigned employment power NEMA: 1,4914kW, Number of normally closed auxiliary contacts circuits: 1, Main connection type of connection.