R911329218 (MSK101C-0300-NN-S3-FG0-NPNN)

MSK IndraDyn S Synchronous Motors

MSK101C-0300-NN-S3-FG0-NPNN Series Image

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The Bosch Rexroth synchronous servomotor, MPN R911329218 (MSK101C-0300-NN-S3-FG0-NPNN), is designed for industrial use in environments where explosive atmospheres may be present. This IndraDyn S series unit features natural convection cooling, flange assembly (B5), and a plain shaft without a holding brake. It operates using a three-phase, four pole-pair configuration and integrates a singleturn capacitive encoder with Hiperface interface and 16 signal periods resolution. Electrical specifications include a winding code of 0300, continuous current at standstill (100K) of 21.3 A, continuous torque at standstill (100K) of 36.5 Nm, maximum current of 84.2 A, maximum torque of 110.0 Nm, and winding inductivity of 6,000 mH. The motor uses terminal box connectors, contains components of brass, copper, aluminum, and steel, and adheres to EN 60034-7 for B5 frame size. Operation is restricted to ambient temperatures not exceeding 40°C.

Technical Specifications

Use Environment
Industrial

Product Group
MSK

Water Resistance
None

Operation
Qualified personnel

Temperature During Operation
High

Holding Brake
Not present

Cool Down Period
Required after shutdown

Mounting Equipment
Must be suitable

Frame Size
B5 according to EN 60034-7

Shaft
Smooth with sealing ring

Encoder System
Inbuilt

Pole Pairs
Four

Phases
Three

Disassembly
Dismount from machine first

Combustion
Occurs at temperatures over 60°C

Materials
Brass, aluminum, copper, steel

Electrical Connections
Via circular connectors

Torque Reduction
20% to 30% when fitted with transmissions

Coating
No additional varnish on housing

Interface
Hiperface

Maximum Ambient Temperature
40°C for operation with rated data

Shipping
Global

Frequently Asked Questions

How does passive natural-convection cooling on the MSK101C-0300-NN-S3-FG0-NPNN affect usable continuous torque and installation constraints?

Its natural convection relies on unobstructed airflow and clean surfaces, while contamination or enclosure crowding reduces heat dissipation and continuous rating. It is important to observe 0–40 °C ambient, IP65 conditions and provide thermal margins when sizing the axis.

What does a capacitive singleturn Hiperface encoder (16 signal periods) imply for control precision and tuning?

The S3 capacitive Hiperface system provides deterministic phase information and fine interpolated position for stable low-speed control and smooth commutation. It interprets 16 electrical periods per revolution for enabling accurate velocity loops and crisp contouring.

Why choose the plain keyed shaft and B5 flange on the MSK101C-0300-NN-S3-FG0-NPNN for gearbox coupling?

Its keyed plain shafts simplify torque transmission and service while the B5 flange centers the motor precisely on reducers or frames for minimizing misalignment. Its shaft/bearing force limits when selecting couplings and overhung loads.

How do 6,000 mH winding inductivity and 84.2 A maximum current influence drive selection and current ripple?

The higher inductivity damps di/dt and torque ripple, aiding low-speed smoothness but requiring adequate bus voltage and current-loop bandwidth for dynamics. It is important to ensure the selected IndraDrive current rating accommodates 84.2 A peaks during acceleration profiles.

What environmental ratings and basic limits apply, and how do they guide cabling via the terminal box?

The MSK101C tables indicate IP65 and 0–40 °C ambient; plan gland sizes, shielding and strain relief consistent with EMC practices in industrial environments. It is important to maintain clear airflow paths to preserve natural-convection performance.

Common Misspellings

Internal Product Review

The Bosch Rexroth’s MSK101C-0300-NN-S3-FG0-NPNN servomotor uses natural convection heat dissipation through it surface and it supports B5 flange mounting. It comes with a keyed plain shaft design and possess a terminal-box connector for safety. This motor relies on a singleturn capacitive feedback system that complements IndraDrive control. At 300 rpm it delivers 36.5 Nm continuous and 110 Nm peak to suits CNC, packaging and robotic assemblies.

1620 Old Apex Road
Cary, NC 27513, USA

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

Fax: 1-919-867-6204

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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.