MS2M03-B0FNN-KMDH1 Bosch Rexroth Indramat
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MPN: R911421764
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The Bosch Rexroth Indramat MS2M03-B0FNN-KMDH1 is part of the MS2M Ultra Compact Motors series and features a rated power of 0.4 kW with a rated speed of 3000 min-1. This motor has an optical encoder with 23 bit resolution, an IP65 protection rating, and operates with a maximum current of 7.23 A. It uses natural convection cooling and includes an electrically released holding brake powered by 24V DC.
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Product Description:
The MS2M03-B0FNN-KMDH1 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the MS2M Ultra Compact Motors series. It works as a compact rotary actuator in industrial automation, converting electrical energy into precisely regulated shaft motion for positioning and light-duty feed axes where space and weight are constrained. At its nominal operating point, the motor supplies a continuous torque of 1.27 Nm while maintaining a shaft speed of 3000 rpm. This combination supports controlled movement in applications that require a small motor with predictable performance under continuous loading.
The motor provides a continuous mechanical output of 0.4 kW, indicating how much power can be transferred to the load without thermal derating. Its steady-state phase current is 2.40 A, which must be supplied by the connected inverter during continuous operation. The electromagnetic design provides a torque constant of 0.52 Nm/A, so each ampere of stator current produces slightly more than half a newton-meter of torque. These electrical values help determine the appropriate drive amplifier, supply conductors, and overload protection for the application. Natural convection removes operating heat without requiring a fan or liquid-cooling circuit, which simplifies installation in compact machinery.
For brief acceleration demands, the unit can deliver up to 3.82 Nm of peak torque and accept a momentary winding current of 7.23 A. An electrically released holding brake with a 24 V DC coil secures the shaft when power is removed, helping prevent unintended movement while the axis is stationary. The housing has an IP65 rating, allowing installation in areas exposed to dust or water spray when the mating M17 SPEEDCON connectors are properly sealed. An optical 23-bit single-turn or multi-turn feedback system provides detailed rotor position data for accurate closed-loop control. The low-inertia rotor supports responsive acceleration and deceleration on light-duty positioning axes. The permitted operating temperature ranges from 0 °C to 40 °C, and the sound pressure level is 65 dB(A) under the stated operating conditions.
