The Schneider Electric LC1K0601B5 is a 3-pole contactor from the TeSys K series, rated for 6 A in AC-3 and AC-3e utilization categories at up to 440 V. That AC-3 rating means it's built for starting and stopping squirrel-cage motors — the standard duty for a contactor this size. The 24 V 50 Hz coil keeps it in the common control-voltage range for panel designs in regions using 50 Hz mains.
The AC-3 and AC-3e ratings at 6 A tell you this contactor handles motor inrush (typically 6–8x FLA) during starting, then breaks the running current. The AC-4 rating at 36 A (up to 440 V) covers plugging or inching duty — but note the electrical durability drops to 0.05 Mcycles there, so it's not meant for frequent reversing without a derating check. The 1.3 Mcycles at AC-3 is solid for a compact contactor. The single NC auxiliary contact is instantaneous, not timed — useful for a feedback signal to a PLC or to seal in a holding circuit. Minimum switching capability is 5 mA at 17 V, so it'll reliably sense dry contacts or low-power logic inputs without needing a wetting current booster.
Screw clamp terminals accept one or two conductors from 0.34 to 4 mm², solid or flexible with ferrules. The IP20 finger-safe protection (per VDE 0106) means it's safe for open-panel installation behind a locked door.