What this servo motor delivers on a motion axis
The MH31402P12F2200 is a three-phase servo motor from the Schneider Electric MH3 series, fitted with a holding brake and a multiturn SinCos Hiperface encoder. It delivers 3.73 kW continuous power at 400/480 V three-phase, with a nominal torque of 16.34 N.m and a peak stall torque of 55.5 N.m for short-duration acceleration events. The 18 N.m holding brake locks the rotor when power is removed — critical for vertical-axis loads where the Z-axis must not drop on a power loss. The IP65 rating means the motor body and connector seal against washdown, so it can sit on a food-grade conveyor or a machine-tool coolant bath without a secondary cover.
Torque and speed — what the numbers mean for your axis sizing
Nominal torque is 16.34 N.m across the 115–480 V range when paired with an LXM52 or LXM62 drive at the corresponding current setting. The continuous stall torque is 18.5 N.m — that is the torque the motor can hold at zero speed indefinitely without overheating, which matters for indexing or clamping applications where the axis holds position under load. Nominal speed is drive-dependent: 1000 rpm with LXM52/LXM62 at 115 V single-phase, 2000 rpm at 230 V single-phase, and 3500 rpm at 400/480 V three-phase. The back EMF constant of 70.7 V/krpm means the motor generates 70.7 V per 1000 rpm — at 3500 rpm the back EMF is ~247 V, which must stay below the drive's DC bus voltage to maintain current control.
Mechanical fit — flange, shaft, and mounting constraints
The motor uses an international standard flange with a 140 mm flange size and a 130 mm centring collar diameter. The shaft is 24 mm diameter with a parallel key, 50 mm shaft length, and an 8 mm key width — standard for coupling to a gearbox or pulley with a keyed bore. Electrical connection is via rotatable right-angled connectors — the connector head can be oriented in 90° increments, which helps when routing cables in a tight cabinet or along a moving cable track. Cooling is natural convection, so no external fan or air supply is needed; the thermal limit is set by the 135 °C copper hot-spot temperature.
Sourced through authorized distribution channels against an RFQ. No stock-holding claim — each order is placed against confirmed supply.
