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 reference 1SBL157001R1201 specifically, is a power contacter to switch the AC feed.
Its features are: Nominal control power voltage Us to CA 50HZ: 48V, nominal control power voltage Us to CA 60HZ: 48V, nominal control power supply Us at CC: 48V, Drive voltage type: CA/CC, nominal running current Ie at CA-1, 400 V: 28A, nominal operating current Ie at CA-3, 400 V: 12A, Normally closed power.