What it is and what it does
The LC3D80U7A64 is a TeSys Deca star delta starter from the TeSys range, pre-wired for motor starting applications. It carries 3 x 3P NO power poles and is rated for AC-3 utilisation category, meaning it's sized for switching three-phase induction motors under starting and running conditions. The 80 A frame at 240 V AC coil voltage fits a common control voltage for panel builds across North American and European line supplies.
What the ratings mean for fit
The AC-3 rating (80 A) governs motor switching duty — this is the current the starter can make and break under full-load motor starts, not just resistive heating. The 240 V AC coil means the control transformer or PLC output driving it must supply that voltage; a 24 V DC coil variant would be a different order code. IP20 on the front face means it's protected against finger contact but not against moisture ingress — it belongs inside a panel, not in a washdown zone. The TH protective treatment per IEC 60068-2-30 indicates the unit is treated for tropical humidity environments, which matters for coastal or unconditioned plant floors.
Deployment context
This is a panel-mounted star delta starter, pre-wired with screw clamp terminals for power and control connections. The 3 x 3P NO configuration means each of the three contactor sections has three normally-open power poles — standard for a six-lead motor connection in star-delta topology. The pollution degree 3 rating tells you it's suited for industrial environments with conductive pollution, so no special conformal coating is required inside a standard IP54 or better enclosure.