MS2M03-B0FNN-KMDL1 by Bosch Rexroth Indramat

The MS2M03-B0FNN-KMDL1 is a servomotor from Bosch Rexroth Indramat in the MS2M Ultra Compact Motors series. Its frame size 3 and length B suit tight mounting points in packaging, handling, and printing lines. In an automation cell, it converts electrical power from a Rexroth inverter into controlled rotation and positions loads through its keyed shaft. The electrically released holding brake keeps vertical or intermittent-duty axes fixed when the drive is de-energized.

At its continuous operating point, the motor delivers 0.4 kW of mechanical output while drawing a phase current of 2.40 A. This operating point corresponds to a shaft load of 1.27 Nm at a synchronous speed of 3000 rpm, which suits medium-inertia indexing tables and feeders. The motor has a torque constant of 0.52 Nm/A(rms), so the drive controller can estimate output torque directly from actual current feedback. Phase resistance at 20 °C is 1.74 ?, which influences voltage demand, and five pole pairs set the electrical frequency relationship. An optical 23-bit encoder supplies both single-turn and multi-turn position data within a 4.75 to 5.25 V logic range, enabling high-resolution closed-loop control. Natural convection removes losses and avoids the need for forced cooling hardware.

For dynamic moves above the continuous operating point, the rotor can accelerate up to 6000 rpm and temporarily generate 3.82 Nm. The motor remains compact for moving axes, and its low mass of 1.7 kg helps gantries and similar systems respond quickly. An IP65 rating protects the stator laminations and connectors against airborne dust and low-pressure water jets, so the unit can be mounted directly on machinery without an additional enclosure. Quick-lock M17 connectors and double metal lead cables support secure cable connection, and the 65 dB(A) sound level keeps acoustic output within typical plant limits.