LC3FH43LC TeSys ETOI Three-Pole Contactor, 220V 60Hz, Active

The LC3FH43LC: The description ETOI LE TRI NU 220V 60HZ breaks down as: ETOI (TeSys ETOI series), LE TRI (three-pole), NU (open-style contactor — no enclosure), 220V 60HZ (coil voltage and frequency). This is a bare contactor for panel mounting, not a pre-wired or enclosed starter. The 220V 60Hz coil means it pulls in reliably on a 208-240V 60Hz control transformer secondary; expect dropout around 165V or below. For a controls integrator, the open-style form factor saves DIN rail space compared to an enclosed starter, but requires the panel builder to size the upstream short-circuit protection and overload relay separately.