Siemens SIMOTICS M 1FE1 Built-In Synchronous Motor

Siemens SIMOTICS M 1FE1 Built-In Synchronous Motor About

The Siemens 1FE1095-4WN11-1BA2 is a SIMOTICS M 1FE1 four-pole built-in synchronous motor designed for high-speed, high-precision spindle and machine-tool applications. It operates with a 600 V DC-link voltage and uses water cooling for efficient thermal management. The motor delivers 46 kW rated output power, 125 Nm rated torque, and 108 A rated current at a rated speed of 3,500 RPM. Its maximum permissible speed is 18,000 RPM, providing excellent capability for high-speed spindle operation. The motor uses overhang-encapsulated winding with standard KTY thermal protection, a standard cooling jacket, and is supplied without a rotor sleeve. A Voltage Protection Module (VPM) is required for operation at high speeds. The configuration consists of separate stator and rotor components, with 0.5 m free cable ends. Siemens documentation specifies a stator weight of approximately 47.5 kg including the cooling jacket. This motor is suitable for CNC machine tools, high-speed spindles, precision machining, grinding, and other demanding industrial applications requiring high power density and reliable thermal performance.