AC servo motor
Allen-Bradley Kinetix MPM Medium-inertia Servo Motors (MP-Series)
Power-dense medium-inertia MP-Series motor with IEC metric mounting, rotatable DIN connectors and absolute encoder or resolver feedback.
Key specifications
| Frame sizes | 115, 215 mm |
|---|---|
| Supply | 230 V AC and 460 V AC windings |
| Feedback | high-resolution absolute encoder, resolver |
Summarised in our own words from Rockwell Automation's published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1 · Source 2
Notes on this data
Torque/power/IP not published on pages checked (in KNX-TD001, which could not be fully extracted). Sample catalog number MPM-B2152M-MJ72AA lifecycle 'Active', rated speed 4500 rpm.
Specify Motion is not affiliated with Rockwell Automation. Allen-Bradley and Kinetix MPM Medium-inertia Servo Motors (MP-Series) are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Alternatives that meet or exceed these figures
Engineers often come to us with an Allen-Bradley part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 3 series from our supply network are the closest match on published figures.
Kinco's current-generation AC servo motor line, matched to the JD2 and FD5P PRO drives. Small-inertia 40-80 mm frames run at 3000 rpm on 220 V; large-inertia 130 and 180 mm frames are 1500 rpm machines reaching 47.8 Nm rated and 7.5 kW, with 23-bit multi-turn absolute encoders as standard.
View series →Kinco's established AC servo motor range from 40 to 180 mm frames, covering 50 W to 7.5 kW and up to 48 Nm rated torque. Standard feedback is a 2500-line incremental encoder with Hall commutation, with absolute options and a resolver on the 180 mm frame. Pairs with FD2S and CD2S drives.
View series →Compact Kinco AC servo motors from 50 W to 3 kW with absolute encoders (17-bit single-turn or 16-bit multi-turn), in 40-130 mm frames for use with FD2S and CD2S drives.
View series →Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Other ac servo motor series
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