What this motor actually is on the shaft
1FK7086-4SF71-1QG0-ZN05 is a SIMOTICS S 1FK7 high-dynamic synchronous servomotor rated 38 Nm continuous, 100 K thermal class, 3000 rpm rated speed, and 7.50 kW shaft power, with forced ventilation rather than self-cooled convection — the blower unloads the thermal envelope and lets the frame hold its rating across the full speed range without the torque derating a naturally cooled 1FK7 would carry at low rpm. Encoder is an absolute singleturn 20-bit with Drive-CLiQ interface (AM24DQI), which plugs directly into a SINAMICS S120 drive-cliq chain without an external SMC/SME module — the power and signal connectors are rotatable by 270° so the cable exit can be clocked to suit the cabinet layout during commissioning. Mounting is IM B5 (V1, V3) flange with a plain shaft, tolerance N, no holding brake, and IP64 ingress protection on the housing — IP64 is dust-tight and resistant to splashing water from any direction but is not a washdown rating, so the motor belongs inside a machine envelope or a cabinet-adjacent mount, not a food-and-bev line. The ZN05 option tail notes shaft-end dimension compatibility with the 1FT507x series — a useful fit check for retrofitting a 1FT507x-driven load without a coupling or adapter redesign, and the only piece of engineering nuance the catalog string carries beyond the standard 1FK7086-4SF71-1QG0 build.