MS2M04-B0FNN-KMDH0 Bosch Rexroth Indramat
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MPN: R911421771
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The Bosch Rexroth Indramat MS2M04-B0FNN-KMDH0 is part of the MS2M Ultra Compact Motors series and features a frame size of 4 with a B length. It operates using natural convection cooling, has an optical encoder with 23-bit resolution, and comes without a holding brake. The motor is protected to IP65 standard and works within an operational temperature range of 0 to 40 degrees Celsius.
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Product Description:
The MS2M04-B0FNN-KMDH0 is a compact synchronous servo motor manufactured by Bosch Rexroth Indramat for the MS2M Ultra Compact Motors series. Designed as an ultra-compact rotary actuator, the unit converts electrical energy into controlled torque and speed for coordinated motion in industrial automation cells, conveyors, and light machining centers. Its small frame allows dense machine layouts, while the built-in feedback system supports closed-loop regulation and lets controllers command rapid indexing, smooth interpolation, or continuous running duties with a minimal footprint.
Electrical connection is established through M17 quick-lock SPEEDCON connectors, which secure both power and feedback lines. The motor incorporates a 23-bit optical encoder that can operate in single-turn or multi-turn modes, providing high-resolution position data to the drive. Encoder electronics run from a regulated supply of 4.75 to 5.25 V, so upstream wiring must keep voltage within that narrow band. Heat is removed only by natural convection, eliminating the need for forced airflow but requiring free ambient circulation. An IP65 housing shields internal components from dust and water jets, and the assembly is rated for continuous duty in ambient temperatures from 0 °C to 40 °C. The unit has frame size 4 with frame length B, uses a plain shaft without a sealing ring, and is supplied without a holding brake. Power conductors leave the stator through a double metal leadwire cable, which adds strain resistance during motion.
Inside the stator, permanent magnets generate synchronous rotation at up to 3000 rpm when the drive supplies the rated current. The magnetic assembly is matched to a low-inertia rotor, enabling fast acceleration and precise following of dynamic command profiles. Acoustic emissions remain below 65 dB(A), supporting deployment near operators without additional acoustic treatment. The electrical design uses 5 pole pairs, which helps keep torque ripple within allowable limits.
Frequently Asked Questions about MS2M04-B0FNN-KMDH0:
Q: What type of encoder is utilized by the MS2M04-B0FNN-KMDH0 motor?
A: The MS2M04-B0FNN-KMDH0 motor features an optical encoder with a resolution of 23 bits.
Q: What connection options are available on the MS2M04-B0FNN-KMDH0 motor?
A: This motor is equipped with M17 connectors and a quick lock SPEEDCON feature for efficient cable connections.
Q: How is the MS2M04-B0FNN-KMDH0 motor cooled?
A: The cooling mode for this model is natural convection, operating without external fans.
Q: What level of environmental protection does the MS2M04-B0FNN-KMDH0 offer?
A: The MS2M04-B0FNN-KMDH0 has an IP65 protection rating, offering solid resistance to dust and low-pressure water jets.
Q: What is the shaft design of the MS2M04-B0FNN-KMDH0 motor?
A: This model comes with a plain shaft without a shaft sealing ring.
