Headline torque and the drive pairing it expects
The MH31901P11A2200 is the MH3-frame servo motor in a 7.5 in (190 mm) flange, listing 16.5 N.m nominal torque at 3000 rpm when paired with an LXM52 or LXM62 drive at 400 V or 480 V three-phase, which is the sizing reference integrators read first when matching motor to drive. The motor draws 23.2 A continuous stall current and reaches 89.6 A Irms maximum, with a peak stall torque of 110 N.m available from 115 V to 480 V — the peak figure is what protects the drivetrain during acceleration transients, while the 16.5 N.m figure is what the application actually uses in steady state.
Continuous power is listed at 6750 W, with the temperature copper hot ceiling at 275 °F (135 °C) and the torque constant quoted at 1.3 N.m/A at 248 °F (120 °C) — so the motor's continuous rating is set by the winding thermal limit, not the drive's current ceiling. Back emf is 87.6 V/krpm and stator resistance 0.24 Ohm with 5.08 mH inductance across 10 poles; on a 400 V or 480 V DC bus the operating speed envelope tops out at 3800 rpm mechanical, so any application targeting above 3000 rpm nominal needs the derating confirmed against the speed-torque curve.
Shaft, flange and radial load budget
Shaft end is a parallel key, 38 mm diameter by 80 mm long with a 10 mm keyway, mounted to an international standard flange via four 14 mm bolt holes on a 180 mm centring collar — the standard IEC flange footprint is what lets this motor drop into a machine redesign without a bracket adapter.
Feedback, sealing and what ships in the carton
Encoder is a single-turn SinCos Hiperface device on a rotatable right-angled connector, no holding brake and no second shaft end — so the kit ships as the bare motor body and the mating connector kit, key, and resolver/encoder cable are specified on the same RFQ. Cooling is natural convection and the seal is IP65 standard, which covers cabinet-mounted machine tools and packaging lines but not direct washdown — for food-and-beverage or outdoor cabinets the application needs the IP67 upgrade variant from the same frame family, not a different motor.