Rated Performance and Application
The LC1E1810F7: This 3-pole contactor is rated for motor control and resistive load switching under utilisation categories AC-3, AC-3e, and AC-1. The headline rating is 18 A at ≤440 V in AC-3 duty, which governs its ability to switch standard squirrel-cage induction motors during starting and stopping — the AC-3 category specifically covers starting and plugging/plugging reversal of motors. The AC-1 resistive load rating carries a higher current capability but is not the limiting factor for motor applications. The 110 V AC 50/60 Hz coil draws its control power from a standard control transformer, with a guaranteed non-overlap time of 1.5 ms between NC and NO contacts on both energisation and de-energisation, ensuring positive break-before-make sequencing in safety circuits.
Standards Compliance and Environmental Ratings
The LC1E1810F7 is fully compliant with EN/IEC 60947-1, EN/IEC 60947-4-1, EN/IEC 60947-5-1, and the corresponding GB/T standards for the Chinese market. Operating altitude is 3000 m without derating, and the permissible ambient temperature range is -5 to 55 °C for operation, with storage from -60 to 80 °C.
Mechanical Integration and Mounting
The contactor is rated for mechanical robustness: vibrations of 1.5 Gn (5-300 Hz) when open and 3 Gn when closed, and shock resistance of 7 Gn (open) and 10 Gn (closed) for 11 ms. This makes it suitable for installation on machinery subject to moderate vibration, such as conveyor systems or pump skids.