MS2M03-A0FNN-KMDH1 by Bosch Rexroth Indramat

The MS2M03-A0FNN-KMDH1 is a servo motor manufactured by Bosch Rexroth Indramat as part of the MS2M Ultra Compact Motors series. Intended for modern industrial automation, this ultra-compact unit converts drive current into precise shaft rotation for small positioning axes, packaging spindles, and assembly robots where cabinet space and dynamic response are critical. Its compact form reduces weight and length while still providing closed-loop feedback and an integrated holding brake for vertical loads.

It uses an electrically released brake energized at 24 V DC, keeping the axis stationary when supply power is removed. Power, feedback, and brake conductors terminate on a single M17 quick-lock SPEEDCON connector that simplifies cable connection. Heat is removed only by natural convection, so no external fan is required, and the A frame length keeps the installation depth short. Rotor mass is minimized by the low-inertia design, letting the 3000 rpm winding reach target speed with short current rise times. Position data are delivered by a 23-bit optical encoder; its 8,388,608 counts per turn support both incremental tasks and absolute referencing. The same sensor supports single-turn and multi-turn operation, storing up to 4096 revolutions so homing cycles can be skipped after power restoration.

The plain shaft is supplied without a sealing ring for direct coupling to gear stages or pulleys. A double-cable metal leadwire carries auxiliary signals. A housing rated IP65 blocks dust and low-pressure water jets, allowing placement near production lines. Continuous duty is permitted within an ambient window of 0 to 40 °C, and noise stays below 65 dB(A). Internal logic requires only 4.75 to 5.25 V, so the encoder and brake connect to standard controllers. Frame size 3 keeps the motor compact for machines that need fast acceleration in tight spaces.