MDD090A-N-020-N2K-110GB0

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The MDD090A-N-020-N2K-110GB0 synchronous motor delivers a nominal motor speed of 2000 min-1 and weighs 33 kilograms. Manufactured by Bosch Rexroth Indramat as part of their MDD Synchronous Motors series, it features a protection category of IP65 and an insulation classification of Class F. It offers a theoretical maximum torque of 87.1 Nm.

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Product Description:

Bosch Rexroth Indramat manufactured the MDD090A-N-020-N2K-110GB0 digital AC servo motor. The motor is from the MDD series and is made for industrial automation uses that need to be very precise. It is compact and falls within the dimension 090 category. It is equipped with the shortest motor length (A) and a built-in feedback system for position control.

The MDD090A-N-020-N2K-110GB0 AC servo motor flange has through holes and is made for B14 fitting. The fixing holes have a pitch circle diameter of Ø165 mm, which fits 4 holes that are each Ø11 mm in size. The flange has a diameter of Ø140 mm, which makes it structurally compatible with normal mechanical interfaces. The 8x7x40 mm output shaft meets the requirements of DIN 6885-A. According to DIN VDE 0530, the shaft is adjusted to class N. The centering diameter is Ø110 mm, and the tolerance is j6, which helps make sure that everything is lined up correctly during fitting. The power port is on side K, which is angled to make sure that cables can be routed easily. The type of feedback connection is INS 511, and it is also not straight. Dust and water are prevented from entering the motor while it is in operation due to its IP65 rating.

The MDD090A-N-020-N2K-110GB0 AC servo motor can be installed up to 1000 meters above sea level and still work properly at normal industrial installation heights. The housing is covered with a black primer that matches RAL 9005, which makes it look more like other equipment boxes. Natural convection serves as an adequate cooling mechanism. The temperature range for both the environment and storage is 0 to +45 °C and -20 to +80 °C, respectively. At the end of the motor, there is a feature that makes sure the mechanical coupling is safe when using a DIN-standard output shaft.

Continuous Current At Standstill
27.8 A (34.3 A with surface cooling)
Continuous Torque At Standstill
28.0 Nm (34.5 Nm with surface cooling)
Insulation Classification
Class F
Mass Of The Motor
33 kg
Maximum Ambient Temperature
45 °C
Minimum Ambient Temperature
-20 °C
Nominal Motor Speed
2000 min-1
Peak Current
125.2 A
Protection Category
IP 65
Rotor Moment Of Inertia
123 x 10-4 kgm²
Theoretical Maximum Torque
87.1 Nm
Thermal Time Constant
90 min (60 min with surface cooling)
Torque Constant At 20 °c
1.01 Nm/A
Winding Inductance
4.6 mH
Winding Resistance At 20 °c
0.30 Ω

Frequently Asked Questions about MDD090A-N-020-N2K-110GB0:

Q: Why does MDD090A-N-020-N2K-110GB0 use natural convection cooling?

A: Natural convection avoids moving parts and reduces maintenance. It ensures consistent thermal dissipation without relying on external cooling systems.

Q: How does MDD090A-N-020-N2K-110GB0 ensure shaft alignment?

A: The centering diameter Ø110 j6 ensures precise alignment. It provides a tight tolerance fit during motor mounting.

Q: Why is insulation class F used in MDD090A-N-020-N2K-110GB0?

A: Insulation class F handles higher winding temperatures. It allows stable performance in applications with elevated thermal loads.

Q: Does MDD090A-N-020-N2K-110GB0 support angled feedback connectors?

A: Yes, the feedback connector type is INS 511 angled. It simplifies cable routing in compact assemblies.

Q: How does MDD090A-N-020-N2K-110GB0 protect from dust ingress?

A: It features IP65 protection that prevents dust entry. The rating also ensures protection from low-pressure water jets.


Internal Product Review

  • ‘‘The product code MDD090A-N-020-N2K-110GB0 offers stable performance with a torque-balanced shaft. It supports digital servo feedback (DSF) and includes a flange diameter of 140 mm. The housing is coated black (RAL 9005) and maintains operation at 1000 meters. It provides insulation class F for thermal reliability.’’

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