MS2M04-B0FNN-KMDH0 by Bosch Rexroth Indramat

The MS2M04-B0FNN-KMDH0 is a permanent-magnet synchronous motor manufactured by Bosch Rexroth Indramat for the MS2M Ultra Compact Motors series. It is intended for servo axes with limited installation space that still require accurate rotary positioning under closed-loop control. Its aluminum housing, protected joints, and inline M17 connector arrangement allow direct mounting on packaging stations, pick-and-place heads, and compact transfer modules where a paired drive controller supplies the commanded current profile.

The housing is sealed to IP65, helping protect internal parts from dust and water jets during operation. Position feedback is provided by a 23-bit optical encoder, which supplies high-resolution rotor angle data for precise commutation and motion control. The winding supports a rated speed of 3000 rpm, allowing fast cycle times without requiring unusually high operating frequencies from the controller. Heat is removed by natural convection, so no external fan is required. The internal electronics use a logic supply range of 4.75 V to 5.25 V, which supports reliable encoder and temperature-sensor operation. This model is supplied without a holding brake, making it better suited to horizontal axes or systems that use an external locking method during shutdown.

Machine noise remains below 65 dB(A) during operation, which helps limit sound output when several compact motors run in the same area. Dynamic response benefits from low motor inertia, which helps reduce settling time after speed changes and supports quick axis movement. The rotor uses 5 pole pairs to support smooth rotation at low speed while maintaining stable torque production. Power and feedback connections use M17 quick-lock SPEEDCON connectors with a double-cable metal lead set in a shielded bundle. The motor has a plain shaft without a sealing ring, and its frame length B with frame size 4 keeps the overall envelope compact while allowing operation from 0 °C to 40 °C.