MSK103A-0300-NN-S2-UG0-NNNN Bosch Rexroth Indramat
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MPN: R911324344
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The Bosch Rexroth Indramat MSK103A-0300-NN-S2-UG0-NNNN is part of the MSK IndraDyn S Synchronous Motors series and features natural convection cooling. This standard design servomotor has an IP65 protection rating and uses an optical EnDat2.1 singleturn encoder with 2048 signal periods. It has a plain shaft, motor size 103, and operates in ambient temperatures from 0 to 40 degrees Celsius.
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Product Description:
The MSK103A-0300-NN-S2-UG0-NNNN belongs to the MSK IndraDyn S Synchronous Motors series manufactured by Bosch Rexroth Indramat. It is a brushless AC motor intended for closed-loop motion axes. It supports repeatable positioning, speed regulation, and high dynamic response in packaging lines, pick-and-place units, and gantry stages. The motor is also suited for coordinated servo applications that require stable response during frequent starts and stops.
The unit relies on natural convection for heat removal, so airflow around the housing must remain unobstructed to keep the stator within its operating temperature range. Its housing carries a protection rating of IP65, preventing dust ingress and shielding internal components from water jets during washdown cycles. Position feedback travels through the digital EnDat2.1 interface, allowing absolute position transmission and automatic parameter detection by the drive controller. The integrated optical encoder delivers 2048 signal periods per mechanical turn, which supports fine velocity control even at low speeds, and the feedback scale uses a single-turn design that provides absolute angle data over one revolution without multi-turn gear trains.
The motor operates in ambient temperatures from 0 to 40 °C, matching typical control cabinet and factory floor conditions. A plain shaft simplifies coupling to gearboxes or timing pulleys by eliminating keyways that could introduce imbalance. The windings are built to insulation class 155, which supports elevated internal temperatures before thermal aging accelerates, and they use winding code 0300 for the electrical values used with matched drive inverters. The motor has an A-length stator body. Its encoder connector can rotate 240°, which helps with cable routing in tight installation spaces.
Frequently Asked Questions about MSK103A-0300-NN-S2-UG0-NNNN:
Q: How is the MSK103A-0300-NN-S2-UG0-NNNN motor cooled?
A: This model employs natural convection for cooling, so it operates efficiently without external cooling devices.
Q: What type of shaft does the MSK103A-0300-NN-S2-UG0-NNNN motor have?
A: The motor is equipped with a plain shaft that provides smooth and direct power transmission.
Q: What is the protection rating of the MSK103A-0300-NN-S2-UG0-NNNN?
A: The MSK103A-0300-NN-S2-UG0-NNNN features an IP65 protection rating, making it highly resistant to dust and water jets from any direction.
Q: What encoder interface does the MSK103A-0300-NN-S2-UG0-NNNN use?
A: An EnDat2.1 interface provides high-precision encoder feedback for accurate position control.
Q: Does the MSK103A-0300-NN-S2-UG0-NNNN include a holding brake?
A: This unit does not come with a holding brake, making it unsuitable for applications that require the motor to hold its position when powered off.
