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R911299262 (MHD115C-059-PP0-BA)

MHD Synchronous Motors

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The Bosch Rexroth R911299262 (MHD115C-059-PP0-BA) is a popular model in their range of synchronous motors, recognized for its high reliability and the ability to handle frequent start-stop operations. It provides two operational modes: natural convection, where it consumes 82.5/95.6 A to generate 70/80.5 Nm torque and surface cooling, that requires 123.8 A for a rated power of 105 Nm. Despite a standard operational speed of 4000 rpm, it can reach a maximum speed of 6000 rpm. The model includes a multiturn optical encoder for precise rotor position detection and has an optional featherkey for constant unidirectional torque. With a brushless design and IP65 protection, the R911299262 (MHD115C-059-PP0-BA) can operate under harsh conditions. It has a 4 pole pairs design, and the voltage constant at 20 degrees Celsius is 86.4 V/1000 rpm. The motor, weighing 55 kg, functions optimally within a temperature range of 0 to +40 degrees Celsius and features class-F insulation.

Technical Specifications

Operating Modes
Natural Convection, Surface Cooling

Constant Current (Natural Convection)
82.5/95.6 A

Constant Torque (Natural Convection)
70/80.5 Nm

Motor Temperature Increase (Natural Convection)
60/100-K

Rated Power (Surface Cooling)
105 Nm

Rated Current (Surface Cooling)
123.8 A

Operating Speed
4000 rpm

Maximum Speed
6000 rpm

Encoder Type
Multiturn Optical Encoder

Motor Output Shaft
Featherkey

Motor Protection Standard
IP65

Input Power (Natural Convection)
88–90 VAC

Input Power (Surface Cooling)
175 VAC

Maximum Power (Surface Cooling)
7.7 kW

Pole Pairs
4

Winding Inductivity
0.9 mH

Voltage Constant at 20°C
86.4 V/1000 rpm

Net Weight
55 kg

Operating Temperature
0 to +40 degree Celsius

Insulation Category
Class-F

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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

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