The 110 V DC coil gives you a standard control voltage for many industrial panels.
The contactor also carries AC-1 (resistive load) and AC-4 (inching/plugging) utilisation categories, so it's not limited to just motor starts. The 110 V DC coil draws a steady hold current; verify your control transformer and rectifier can supply it without sag. Operating altitude of 2000 m without derating covers most standard installations.
