R911281213 (MHD112C-058-PG3-BN)
MHD Synchronous Motors
Technical Specifications
Weight
45kg
Cooling Type
Free convection and surface cooling
Thermal Time Constant
40 or 90 minutes
Color
Black
Operating Temperature
0 to +40 degrees Celsius
Operating Height
Less than 1000 meters above sea level
Holding Brake Weight
3.8kg
Holding Brake Moment of Inertia
30 x 10-4 kgm2
Holding Brake Torque
70 Nm
Holding Brake Rated Current
1.29 A
Holding Brake Rated Voltage
24 V
Motor Winding Inductivity
1.5 mH
Torque Constant
0.8 Nm/A
Max Torque
148 Nm
Peak Current
239 A
Motor Moment of Inertia
273 x 10-4 kgm2
Max Rotational Speed
4500 rpm
Rated Torque at 60/100 K
43.5 Nm
Rated Power Output at 60/100 K
19.4 kW
Rated Voltage at 60/100 K
276 V
Degree of Protection
IP65
Insulation Category
F
Frequently Asked Questions
What is the holding-brake capability and how is it controlled on MHD112C-058-PG3-BN?
The integrated brake supplies 70 Nm holding torque and is energized with 24 V DC (approx. 1.9 A). It’s “electrically releasing”: de-energized it clamps for safety, while applying 24 V opens it for motion.
How do liquid cooling and the 40/90-minute thermal time constants affect continuous duty on MHD112C-058-PG3-BN?
The longer thermal time constants reflect slower temperature rise for allowing steadier operation at elevated load. Its achieves 43.5 Nm and 19.4 kW at 276 V and sustaines torque at 3500 min⁻¹.
What environmental ratings apply and how do they map to plant conditions?
The motor is IP65 with insulation class F that is specified for ambient 0–40 °C and installation heights to 1000 m. Its properly sealed connectors and cables are required to maintain ingress protection in dusty or wet areas.
Which dynamic parameters govern fast indexing with MHD112C-058-PG3-BN?
The maximum speed is 4500 min⁻¹ with rotor inertia of 273×10⁻⁴ kg·m². Its low rotor inertia supports rapid acceleration.
What power-connector orientations are offered, and why choose “side B” on MHD112C-058-PG3-BN?
The options include to side A, side B, right or left, while the “B” orientation is a common selection. It often eases cabinet-side cable routing and bend-radius constraints in tight machines.
Common Misspellings
MHD112C058PG3BN
MHD112C 058 PG3 BN
mhd112c-058-pg3-bn
Internal Product Review
Bosch Rexroth designs the servo motor MHD112C-058-PG3-BN with up to 4500 RPM of operating peak speed. It possesses a sealed plain shaft and multiturn absolute feedback system. This motor yields 43.5 Nm rated torque and consumes 19.4 kW from a 276 VAC source. It fits packaging, machine-tool, printing and textile automation due to its maximum torque capability of 148 Nm.
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