MS2M04-A0FNN-KMDL0
MS2M Ultra Compact Motors
The MS2M04-A0FNN-KMDL0 is an ultra-compact synchronous motor manufactured by Bosch Rexroth Indramat for the MS2M Ultra Compact Motors series. It is intended for integration into space-limited automated machinery where a servo axis must deliver accurate speed and position control without adding significant mass or depth.
At its continuous duty point the motor outputs 0.75 kW while rotating at 3000 rpm; this corresponds to a shaft load of 2.39 Nm maintained with a phase draw of 4.1 A. For rapid acceleration the drive can momentarily supply up to 12.3 A. A 23-bit optical encoder, offered in single- or multiturn form, furnishes high-resolution position data. Low rotor inertia shortens settling time, and the three-phase winding is tuned for 3000 min⁻¹ operation. Power and feedback reach the unit through M17 quick-lock SPEEDCON connectors on a double metal lead set. Heat is removed only by natural convection, allowing operation from 0 °C to 40 °C without forced airflow. The design is delivered without a holding brake, and its acoustic emission is limited to 65 dB(A) at nominal speed.
Peak torque reaches 7.16 Nm for brief overload intervals. Environmental sealing meets IP65 requirements, and the keyed shaft is provided without a sealing ring. The 80 mm square flange, 70 mm spigot, and 90 mm bolt circle combine with frame size 4 and frame length A to simplify alignment. Overall mass is only 2.8 kg, easing payload demands on moving carriages. Control electronics power the encoder through a range of 4.75 – 5.25 V, and the 19 mm shaft diameter transmits the rated output without additional coupler sleeves.
Technical Specifications
Bolt Circle
90 mm
Connectors
M17; Quick lock SPEEDCON
Cooling Mode
Natural Convection
Encoder
Optical Encoder (23 Bit)
Encoder Design
Single/Multiturn
Encoder Resolution
23 bit
Flange Size
80 mm
Frame Length
A
Frame Size
4
Holding Brake
Without Brake
Leadwire Cable
Double Cable Metal
Maximum Current
12.3 A
Maximum Torque
7.16 Nm
Operational Temp Range
0 to 40 Celsius
Product Group
Ultra Compact Motor
Protection Type
IP65
Rated Current
4.1 A
Rated Power
0.75 kW
Rated Speed
3000 rpm
Rated Torque
2.39 Nm
Rotor Inertia
Low Motor Inertia
Shaft
Shaft with keyway, without sealing ring
Shaft Diameter
19 mm
Sound pressure level
65 dB(A)
Spigot Diameter
70 mm
Supply Voltage Range
4.75 to 5.25 V
Weight
2.8 kg
Winding
3000 min-1
Frequently Asked Questions
Internal Product Review
The MS2M04-A0FNN-KMDL0 from the MS2M Ultra Compact Motors series is a highly efficient servo motor featuring an optical encoder with 23-bit resolution and single/multiturn capability. With a rated power of 0.75 kW and rated speed of 3000 rpm, this unit provides strong performance in a compact design. IP65 protection and natural convection cooling ensure reliable operation in demanding environments.
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