R911316339 (MSK076C-0300-NN-M1-UP0-NNNN)

MSK IndraDyn S Synchronous Motors

Rated 4.1 stars (11 total reviews)

Bosch Rexroth Indramat MSK Synchronous Motors MSK076C-0300-NN-M1-UP0-NNNN image

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The R911316339 (MSK076C-0300-NN-M1-UP0-NNNN) is a synchronous servomotor from the IndraDyn S series, designed for industrial automation applications. This motor features natural convection cooling and provides a continuous torque of 13.5 Nm (100K overtemperature) with a maximum torque output of 43.5 Nm and a maximum current of 32.4 A. The rated winding resistance at 20°C is 1.85 Ohms and the winding inductance is 12.6 mH. The unit supports multiturn absolute encoder feedback with 128 signal period resolution; the encoder connector can be rotated up to 240°. The motor has a shaft with keyway, no holding brake, and is protected to IP65 standard, achieving sound pressure levels below 75 dB(A). Maximum speed is 4700 RPM and operational ambient temperature is 0–40°C. Motor size is 076, length C, and the design standard.

Technical Specifications

Product Type
Synchronous Motors

Cooling Types
70K, 100K

Continuous Torque at Standstill (60K overtemp)
12 Nm

Continuous Current at Standstill (60K overtemp)
7.2 Amps

Continuous Torque at Standstill (100K overtemp)
13.5 Nm

Continuous Current at Standstill (100K overtemp)
8.1 A

Maximum Torque
43.5 Nm

Maximum Current
32.4 Amps

Winding Resistance at 20C
1.85 Ohms

Voltage Constant
113V/min-1

Torque Constant
1.84Nm/A

Ambient Temperature Range
00C to 400C

Winding Inductivity
12.6 mH

Leakage Capacitance
6.5 nH

Rotor Moment of Inertia with Brakes
0.0043

Pole Pairs Needed for Operation
4

Thermal Time Constant
60 minutes

Maximum Permissible Speed
4700min-1

Degree of Protection
IP65

Sound Pressure Level
<75 dB(A)

Inertia Brake
Optional

Frequently Asked Questions

What does the 113 V/1000 rpm voltage constant imply for drive selection on MSK076C-0300-NN-M1-UP0-NNNN?

The back-EMF scales with speed (~113 V per krpm), so the DC bus and inverter must allow commanded speed without saturation. Its data is referenced to ~750 V DC link conditions in catalog tables for guiding bus-voltage and field-weakening margins.

Why specify an optical encoder with 128 signal periods and a 240° rotatable connector?

The 128-period Hiperface option offers clean sine-cosine feedback with low signal bandwidth demands and wide max-speed capability, while multi-turn variants (M1) add absolute turns counting. Its 240° rotatable connector simplifies cable exit orientation and routing in dense machines.

How do 1.84 Nm/A torque constant and current limits translate to acceleration planning for MSK076C-0300-NN-M1-UP0-NNNN?

The torque ≈ Kt × I; with value of Kt≈1.84 Nm/A identifies motor torque and load inertia determines achievable angular acceleration (α = T/J).

What are the control implications of 12.6 mH phase inductance and 1.85 Ω resistance in this motor?

The inductance shapes current-loop bandwidth and switching-frequency losses, while its resistance sets copper loss (I²R) and thermal rise at standstill torque. Its drive current controller should be tuned with these parameters and thermal model to respect the 60-minute thermal constant.

What environmental protection and mechanical options exist in the MSK line relevant to this product code?

The MSK motors are designed to IP65, with options for shaft keyway, reduced runout and brake variants, while its electrical and encoder connections are standardized across sizes. It simplifies interchange and spares strategies across machine families.

Common Misspellings

Internal Product Review

The Bosch Rexroth Indramat’s MSK076C-0300-NN-M1-UP0-NNNN servomotor is equipped with an optical 128-period encoder that connects through a 240° rotatable connector. It uses natural-convection cooling and possess a keyed shaft design. This motor delivers a rated torque of 13.5 Nm in continuous mode and 43.5 Nm of peak at 4700 RPM. It has no holding brake and its winding impedance is specified as 1.85 Ω to support applications in packaging, machine-tool, printing and robotics.