MSK076C-0450-NN-M1-U

MSK IndraDyn S Synchronous Motors

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The MSK076C-0450-NN-M1-U motor from Bosch Rexroth Indramat is part of the MSK IndraDyn S Synchronous Motors series. It features natural convection cooling, an optical Hiperface encoder interface with 128 signal periods and a rotatable 240° connector. The motor delivers a torque constant of 1.14 Nm/A at 20°C and handles up to 54.9 A current. It comes in size 076 with a length code C.

Technical Specifications

Cooling
Natural convection

Encoder Connector
Rotatable, 240°

Encoder Interface
Hiperface

Encoder Resolution
128 signal periods

Encoder Technology
Optical

Encoder Turn Type
Multiturn Absolute

Motor Length
C

Motor Size
076

Product Type
IndraDyn S Synchronous Servomotor

Winding Code
0450

Electrical Connection
Plug, rotatable 240 degrees

Holding Brake
Factory Assigned

Other Design
Factory Assigned

Product
MSK

Shaft
Factory Assigned

Rated Speed Code
0450

Frequently Asked Questions

What are the implications of natural-convection cooling on continuous torque and enclosure design for MSK076C-0450-NN-M1-U?

The heat is removed by surface radiation and ambient airflow, so thermal margins depend on mounting, orientation and enclosure temperature. For elevated duty cycles or confined cabinets, forced-air or liquid-cooled MSK variants can be considered to preserve torque utilization.

How should the 1.14 Nm/A torque constant at 20 °C influence IndraDrive sizing for MSK076C-0450-NN-M1-U?

The torque scales with commanded current; at the specified constant and a 54.9 A ceiling, peak torque capability and DC-bus requirements can be computed. It is important to select an IndraDrive with suitable current rating and margin for transient overload and regeneration.

Why is the 240° rotatable power/encoder connector useful during machine integration of MSK076C-0450-NN-M1-U?

The swivel connector enables strain-relieved cable exits in several directions without re-clocking the stator housing. It eases routing through cable chains that reduces bend-radius violations and supports rapid service access in dense machine layouts.

How does the optical multiturn Hiperface encoder (128 signal periods) on the MSK076C-0450-NN-M1-U aid positioning accuracy and startup workflow?

The Hiperface encoder supplies sinus-cosine tracks with 128 signal periods, which the drive interpolates for fine position feedback. It retains position across power cycles to eliminate homing and shortens startup sequences.

How does MSK076C-0450-NN-M1-U communicate with Rexroth IndraDrive controllers, and what setup conveniences result?

The encoder carries motor data memory read by IndraDrive during commissioning to enable automatic parameterization and overload protection settings. Its Hiperface connectivity supports precise motion loops and diagnostic access without manual entry of motor constants.

Common Misspellings

Internal Product Review

The MSK076C-0450-NN-M1-U motor from Bosch has a measures torque constant of 1.14 Nm/A at 20 °C and its peaking current capacity is 54.9 A. It uses natural heat dissipation and comes in a 76 frame size. This unit has an optical multiturn Hiperface encoder that provides 128 signal periods and connects through a 240° rotatable plug for simplified integration. It is widely used in machine tools, packaging/food and printing systems.