MS2M03-B0FNN-KMDL0 Bosch Rexroth Indramat
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MPN: R911421763
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The Bosch Rexroth Indramat MS2M03-B0FNN-KMDL0 is part of the MS2M Ultra Compact Motors series and features an optical encoder with single or multiturn design and 23-bit resolution. This motor has a rated speed of 3000 rpm, a rated torque of 1.27 Nm, and a maximum torque of 3.82 Nm, with natural convection cooling and IP65 protection. It is equipped with M17 quick lock SPEEDCON connectors and supports a maximum current of 7.23 Amps.
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Product Description:
The MS2M03-B0FNN-KMDL0 is an ultra-compact rotary motor built by Bosch Rexroth Indramat for the MS2M Ultra Compact Motors series. Designed for tightly packed automation modules, the motor supplies controlled rotary power to indexing tables, pick-and-place heads, and other motion axes. It is supplied without a brake and incorporates an optical 23-bit encoder that operates in both single-turn and multi-turn modes, enabling the drive to recover the absolute shaft position after a loss of power.
The motor reaches a rated speed of 3000 rpm at a rated current of 2.40 A, producing 1.27 Nm of continuous torque for cyclic operation. During acceleration or sudden load changes, the current can rise to 7.23 A, and the torque can peak at 3.82 Nm, allowing fast settling with low-inertia loads. Five pole pairs interact with the stator winding, while the low rotor inertia supports rapid direction changes. The housing has an IP65 protection rating, preventing dust and water jets from impairing operation. Heat is dissipated through natural convection, eliminating the need for forced-air cooling hardware. The motor has frame size 3 and length code B for its mounting dimensions. Its keyed shaft is supplied without a sealing ring for direct coupling to compatible gearheads.
Signal integrity is maintained through M17 quick-lock SPEEDCON connectors and a double metal lead-wire cable. The encoder electronics require a supply between 4.75 V and 5.25 V, and the connector arrangement supports reliable transmission of position data to the drive controller. The torque constant is 0.52 Nm/A, while the back-EMF voltage constant per phase is 18.30 mV/rpm, providing the electrical values needed for current-loop tuning. Sound emission remains below 65 dB(A), supporting installation near occupied operating areas. The permitted operating range extends from 0 °C to 40 °C and up to 1000 m above sea level without derating.
