Product Description:

The MSK103D-0300-NN-S2-UG2-RNNN is an IndraDyn S synchronous servomotor produced by Bosch Rexroth Indramat in the MSK IndraDyn S Synchronous Motors series. The motor converts electrical energy into controlled rotary motion for positioning tasks in industrial automation, enabling accurate axis control in conveyors, gantries, and other servo-driven equipment. It is supplied only in length D format to suit standard drive layouts. Its synchronous design also supports closed-loop motion control where fast response and repeatable positioning are required through frequent start-stop cycles.

The stator is cooled by natural convection, so no auxiliary fans or liquid circuits are required and installation remains straightforward. Position feedback is handled through an optical encoder that communicates via the EnDat2.1 interface; its scale provides 2048 signal periods per revolution, and the connector can be rotated through 240° for cable routing. The single-turn encoder is paired with an increased-concentricity design that supports smooth running and stable feedback quality during operation. Environmental ingress is limited by the housing’s IP65 protection rating. Braking functionality is provided by an electrically released holding brake that delivers 60 Nm of static torque, allowing the shaft to remain locked when power is removed.

In mechanical terms, the unit belongs to size 103. The winding code 0300 identifies the electrical configuration used for this motor and is matched to the self-cooled design. Insulation system class 155 supports sustained winding temperatures suited to continuous duty, while safe operation is specified for ambient temperatures between 0 to 40 °C. This operating range suits typical indoor automation equipment where the motor is mounted near gearboxes, couplings, and driven axes. The rotatable connector also helps simplify cable exit in confined machine spaces where access around the motor is limited.