MS2E03-B0BYN-CMSK0-NNNNN-NN
MS2E Synchronous Servomotors
The MS2E03-B0BYN-CMSK0-NNNNN-NN synchronous servomotor is built by Bosch Rexroth Indramat for the MS2E Synchronous Servomotors series. This three-phase permanent-magnet unit provides compact rotary actuation for positioning and velocity loops in automated machinery. Its low-inertia rotor enables rapid acceleration in pick-and-place axes, while the keyed shaft transfers torque to timing pulleys or couplings within motion modules.
At a nominal speed of 9000 min⁻¹, the motor delivers a rated torque of 0.35 Nm, corresponding to a continuous mechanical output of 0.21 kW. For short bursts it can draw up to 7.25 A and reach its mechanical limit of 3.75 Nm, giving fast indexing without overheating. Protection to IP65 is provided by a shaft sealing ring and a varnish coat in RAL 9005, so wash-down or dust areas do not affect the stator windings. The unit relies on self-cooling through its aluminum housing, and it is specified for ambient temperatures from 0 to 40 °C and heights up to 1000 m without derating. Deep-groove ball bearings support the rotor, the design omits a holding brake to save mass, and low inertia minimizes servo lag. Mounting follows the B5 / IM3001 pattern with a 58 mm flange, a 63 mm hole circle, and 4.5 mm mounting holes centered by a 40 mm collar, allowing direct replacement in standardized frames.
Feedback and cabling are integrated: the rotatable M23 connector carries power and the Advanced Performance ACUROlink multiturn encoder signals over a single cable. The encoder supplies 20-bit singleturn resolution plus 4096 absolute revolutions, enabling high-precision commutation with a torque constant of 0.61 Nm/A. In velocity control, the back-EMF grows linearly with speed at 36.9 V/1000 min⁻¹, a figure that guides drive voltage selection. The stator coils present an inductance of 20.22 mH and a phase resistance of 14.3 Ω, parameters that define the current loop bandwidth and braking dissipation. Additional design points include ATEX conformity for hazardous zones, a PT1000 temperature sensor embedded in the winding, self-cooling operation, and a frame length coded “B”. These characteristics complete the dynamic profile without altering the continuous ratings referenced earlier.
Technical Specifications
Absolute Revolutions
4096
Ambient Temperature
0 ... 40 °C (without de-rating)
Bearing Type
Standard (Deep-groove ball bearing)
Centering Collar Diameter
40 mm
Coating
Varnish RAL 9005
Conformity
ATEX compliant
Cooling
Self-cooling
Cooling Principle
Self-cooling
Electrical Connection Type
Single cable connection, M23, rotatable
Encoder System
Advanced Performance ACURO®link
Encoder Type
Multiturn
Flange Exactness
Standard
Flange Size
58 mm
Frame Length Code
B
Functional Encoder Resolution (Singleturn)
20 bit
Holding Brake
Without holding brake
Hole Circle Diameter
63 mm
Installation Altitude
0 ... 1,000 m above MSL
Maximum Current
7.25 A
Maximum Speed (mechanical)
9000 min-1
Maximum Torque (20°c)
3.75 Nm
Motor Size Code
03
Mounting Holes Diameter
4.5 mm
Mounting Standard
B5 / IM3001
Nominal Speed
9000 1/min
Product Type
3~ PM motor
Protection Class
IP65 with shaft sealing ring
Rated Current (60k)
0.72 A
Rated Power (60k)
0.21 kW
Rated Torque (60k)
0.35 Nm
Rotor Inertia Class
Low inertia
Shaft Type
Keyway, with shaft sealing ring
Standstill Current (60k)
1.31 A
Standstill Torque (60k)
0.73 Nm
Temperature Sensor
PT1000
Torque Constant (20°c)
0.61 Nm/A
Voltage Constant (20°c)
36.9 V/1000 min-1
Winding Inductance
20.22 mH
Winding Resistance (20°c)
14.3 Ohm
Frequently Asked Questions
Internal Product Review
The MS2E03-B0BYN-CMSK0-NNNNN-NN is a Bosch Rexroth Indramat synchronous servomotor featuring an advanced ACUROlink multiturn encoder system and single cable connection for streamlined installation. With a maximum speed of 9000 min-1 and IP65 protection with a shaft sealing ring, this motor is well-suited for demanding automation environments. ATEX compliance further enhances its suitability for applications requiring high safety standards.
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