2640 W continuous power, 10.3 N·m stall torque — the torque-speed envelope for this frame
The MH31401P16A2200 is a three-phase servo motor from Schneider Electric's MH3 series, delivering 2640 W continuous power with a continuous stall torque of 10.3 N·m across the 115–480 V range. This is the sustained output you can count on for duty cycles that don't exceed the motor's thermal capacity under natural convection cooling. Peak stall torque hits 39.9 N·m for short-duration acceleration and deceleration events — the motor can deliver this for the thermal time constant of the winding, not continuously. The 29.8 A maximum RMS current sets the drive's peak current requirement.
Single-turn SinCos Hiperface encoder — feedback resolution and tuning implications
The single-turn SinCos Hiperface encoder provides absolute position within one mechanical revolution, with sinusoidal analog signals for high-resolution interpolation. This feedback type supports smooth low-speed operation and good velocity-loop bandwidth — the drive's interpolator extracts the fine position from the sine/cosine tracks, so the effective resolution depends on the drive's interpolation factor. The back EMF constant is 77.41 V/krpm, and the torque constant is 1.2 N·m/A at 120°C copper temperature. These two constants are linked by the motor's electrical design — the drive's current loop must supply the magnetizing current to overcome the stator inductance of 6.72 mH and stator resistance of 0.69 Ω before torque builds. Nominal speed depends on the drive voltage and phase configuration: 1000 rpm at 115 V single-phase, 2000 rpm at 230 V single-phase, and 3500 rpm at 400 V or 480 V three-phase. The maximum mechanical speed is 4000 rpm — overspeed protection in the drive should be set below this to avoid mechanical damage.
IP65, 140 mm flange, natural convection — mounting and environmental fit
The motor carries an IP65 protection rating, meaning the housing is dust-tight and protected against water jets from any direction. This suits washdown environments in food processing or packaging lines where the motor body sees hose-down cleaning — the rotatable right-angled connectors maintain the seal when oriented for the cable exit. The flange size is 140 mm (5.5 in) with four mounting holes on an 11 mm diameter, centring collar diameter 130 mm and depth 3.5 mm. The shaft is 24 mm diameter with a parallel key, 50 mm shaft length — standard for this frame class. The motor is cooled by natural convection, so no external fan or coolant circuit is needed; ensure free airflow around the housing for the rated continuous torque. Maximum radial force on the shaft end is 1930 N at 1000 rpm, derating to 1530 N at 2000 rpm and 1340 N at 3000 rpm. This bearing load limit must be checked against the belt tension or coupling force in the application — exceeding it shortens bearing life.
Active production — sourcing and lifecycle status
This servo motor is sourced through independent distribution channels.