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R911290439 (MHD093B-035-NG0-LA)

MHD Synchronous Motors

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The Bosch MPN R911290439 (MHD093B-035-NG0-LA) is an IndraDyn S synchronous servo motor designed for operation under both natural convection and surface cooling. It operates with an input voltage of 350–360 V in natural cooling mode, delivering a continuous power output of 2.7–4.7 kW, and transitions to 374 V with a blower-assisted surface cooling to provide up to 6.6 kW. The motor generates a torque range of 8.8–20.9 Nm while drawing between 4.6–10.8 A at a frequency of 167 Hz. Featuring a plain shaft with a shaft seal and a black housing equipped with a sealing ring, it is engineered for reliability in various installation environments. The unit utilizes digital servo feedback (HSF) for relative position detection and offers a continuous standstill torque of 17.5 Nm. The motor includes a centering diameter of 130 mm, a flange size of 140/150 mm, and is specified for operation at ambient temperatures up to +40°C and installation altitudes up to 1000 meters. The maximum permissible temperature rises are 60K for the housing and 100K for the winding. Holding brake is not included; power is connected via a left-side connector.

Technical Specifications

Cooling Modes
Natural and Surface

Input Voltage (Natural Cooling Mode)
350-360 V

Continuous Power (Natural Cooling Mode)
2.7-4.7 kW

Input Voltage (Surface Cooling Mode)
374 V

Continuous Power (Surface Cooling Mode)
6.6 kW

Max Overtemperature (Motor Housing)
60K

Max Overtemperature (Motor Winding)
100K

Nominal Torque
8.8-20.9 Nm

Nominal Current
4.6-10.8 A

Input Voltage Frequency
167 Hz

Housing Color
Black

Sealing
Ring along output shaft prevents oil leakage

Servo Feedback
Digital Intelligent

Connector Placement
Top of the motor, power delivery to the left side.

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1620 Old Apex Road
Cary, NC 27513, USA

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Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

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Toll Free: 1-888-551-3082
International: 1-919-443-0207

Indramat USA sells factory new and pre-owned surplus products and maintains channels to procure supply. Indramat USA is not affiliated with nor an authorized distributor or representative of any manufacturers, brands or products listed. Designated trademarks, brand names, and brands appearing herein are the property of their respective owners.