MS2M02-A0FNN-KMDH0
MS2M Ultra Compact Motors
The MS2M02-A0FNN-KMDH0 is a compact synchronous motor produced by Bosch Rexroth Indramat within the MS2M Ultra Compact Motors series. As an ultra-compact drive element, it delivers servo positioning and speed control for space-limited automation axes, allowing machine builders to place motor power directly at the load without enlarging cabinet size.
This motor can generate a peak torque of 0.48 Nm, while its continuous standstill capability is 0.16 Nm; these values indicate the dynamic reserve for rapid indexing and the steady holding force at zero speed. A rated supply of 3x AC 230 V matches standard low-voltage servo inverters, and operation is permitted between 0 to 40 °C provided natural-convection cooling is unobstructed. The housing carries a IP65 rating, so dust ingress and water jets do not impair service. A 38 mm square flange with a 45 mm bolt circle simplifies drop-in mounting, and the 30 mm spigot centers the frame. The plain 8 mm shaft projects 22 mm and is tapped M3 for coupler draw bolts; no shaft seal is fitted, reducing friction. Frame size 2, length A keeps the motor length short, and the SPEEDCON M17 connectors plus double metal leadwire cable accelerate installation. An optical 23-bit single- or multiturn encoder feeds precise position feedback, while the design omits a holding brake to save length. Cooling relies on ambient airflow, and service altitude is limited to 1000 m to maintain insulation clearances.
The low-mass rotor contributes to low motor inertia, enabling fast acceleration that complements the torque figures discussed above. Logic and sensor power stay stable because the encoder accepts 4.75 to 5.25 V. Operating sound remains below 65 dB(A), so the motor adds little acoustic load to equipment enclosures. With a total mass of 0.57 kg, the unit minimizes moving load on lightweight gantries, and the 3000 min⁻¹ winding rating aligns mechanical speed with common ball-screw pitches.
Technical Specifications
Bolt Circle Diameter
45 mm
Connectors
M17; Quick lock SPEEDCON
Cooling Mode
Natural Convection
Encoder
Optical Encoder (23 Bit)
Encoder Design
Single/Multiturn
Flange Size
38 mm
Frame Length
A
Frame Size
2
Holding Brake
Without Brake
Leadwire Cable
Double Cable Metal
Maximum Operating Altitude
1000 m
Maximum Torque
0.48 Nm
Operational Temp Range
0 to 40 Celsius
Product Group
Ultra Compact Motor
Protection Type
IP65
Rated Voltage
3x AC 230 V
Rotor Inertia
Low Motor Inertia
Shaft
Plain Shaft, without shaft sealing ring
Shaft Diameter
8 mm
Shaft Length
22 mm
Shaft Mounting Thread
M3
Sound pressure level
65 dB(A)
Spigot Diameter
30 mm
Standstill Torque (60k)
0.16 Nm
Supply Voltage Range
4.75 to 5.25 V
Weight
0.57 kg
Winding
3000 min-1
Frequently Asked Questions
Internal Product Review
The MS2M02-A0FNN-KMDH0 ultra compact motor from Bosch Rexroth Indramat features an optical encoder with 23-bit resolution and supports both singleturn and multiturn operation. Its IP65 protection and natural convection cooling make it well-suited for demanding automation environments. With low rotor inertia and a maximum torque of 0.48 Nm, this motor is ideal for precise, high-speed applications.
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