MS2M03-A0FNN-KMDL1
MS2M Ultra Compact Motors
The MS2M03-A0FNN-KMDL1 is an ultra-compact synchronous servo motor produced by Bosch Rexroth Indramat within the MS2M Ultra Compact Motors series. Designed for tight installation spaces, the unit supplies precise rotary motion for indexing tables, pick-and-place axes, and other point-to-point tasks in industrial automation. The model combines a frame size 3 stator with the short A frame length, and its low rotor inertia aids rapid acceleration without overshoot. An electrically released holding brake, powered from a dedicated 24 V DC circuit, secures the load when the drive is disabled.
Cooling is by natural convection. The motor supplies 0.64 Nm continuously at 3000 rpm while drawing 1.50 A. It tolerates short bursts up to 1.91 Nm with 4.61 A. Phase resistance is 2.78 Ω at 20 °C. Five pole pairs work with a winding designation of 3000 min⁻¹. An optical 23-bit encoder supports single-turn or multiturn feedback and operates from 4.75–5.25 V. M17 SPEEDCON quick-lock connectors and a double-cable metal lead set handle power and signals. Sound pressure remains below 65 dB(A).
The electrical time constants are influenced by the coil inductance of 13.90 mH, which moderates current ripple during rapid drive commands. With a torque constant of 0.42 Nm/A, the controller can predict the required current for load changes and exploit the motor’s low rotor inertia to shorten settling times. Environmental sealing meets the IP65 rating, permitting installation in dusty or splash-prone zones when paired with the specified shaft that includes a keyway but no sealing ring. The permissible ambient range is 0 °C to 40 °C, and safe winding temperatures are sustained across that span. The motor is classified in the Ultra Compact Motor group, so its footprint stays small even with the holding brake and high-resolution encoder integrated.
Technical Specifications
Brake Voltage
24V DC
Connectors
M17; Quick lock SPEEDCON
Cooling Mode
Natural Convection
Encoder
Optical Encoder (23 Bit)
Encoder Design
Single/Multiturn
Frame Length
A
Frame Size
3
Holding Brake
Electrically Released Brake
Leadwire Cable
Double Cable Metal
Maximum Current
4.61 A
Maximum Torque
1.91 Nm
Operational Temp Range
0 to 40 Celsius
Phase Inductance
13.90 mH
Phase Resistance (20 °c)
2.78 Ω
Pole Pairs
5
Product Group
Ultra Compact Motor
Protection Type
IP65
Rated Current
1.50 A
Rated Speed
3000 rpm
Rated Torque
0.64 Nm
Rotor Inertia
Low Motor Inertia
Shaft
Shaft with keyway, without sealing ring
Sound pressure level
65 dB(A)
Supply Voltage Range
4.75 to 5.25 V
Torque Constant (20 °c)
0.42 Nm/A
Winding
3000 min-1
Frequently Asked Questions
Internal Product Review
The MS2M03-A0FNN-KMDL1 from the MS2M Ultra Compact Motors series by Bosch Rexroth Indramat is an ultra-compact servo motor featuring an optical encoder (23 bit) and a rated speed of 3000 rpm. This unit includes an electrically released brake and IP65 protection, making it suitable for demanding automation environments. Its low rotor inertia and quick lock SPEEDCON connectors ensure precise response and simplified installation.
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