Three-phase 4750 W servo — torque and speed profile
The MH31403P17A2200 is a three-phase servo motor from the Schneider Electric MH3 series, delivering 4750 W continuous power at its rated operating point. The continuous stall torque is 24 N.m, with a peak stall torque of 75 N.m for transient overloads during acceleration or breakaway. Maximum mechanical speed is 4000 rpm, and the nominal speed varies with the drive voltage and phase configuration — 750 rpm at 115 V single-phase, 1750 rpm at 230 V single-phase, and 3500 rpm at 400 V or 480 V three-phase. The torque constant is 1.33 N.m/A at 120 °C, and the back EMF constant is 85.9 V/krpm, which sets the maximum achievable speed for a given DC bus voltage.
Encoder feedback and environmental sealing
The motor is equipped with a Multiturn SinCos Hiperface encoder, providing absolute position feedback over multiple revolutions. This encoder type is compatible with Schneider Lexium drives and supports high-resolution positioning without a homing cycle on power-up. IP65 standard protection means the motor body is sealed against dust ingress and low-pressure water jets — suitable for washdown environments or dusty production areas. Cooling is by natural convection, so no forced air is required, but thermal derating applies if the motor is enclosed in a confined space without airflow. Electrical connection is via rotatable right-angled connectors, which eases cable routing in tight cabinet layouts. The motor is supplied without a holding brake — external mechanical holding or a brake resistor must be provided for vertical-axis or power-off hold applications.
Mounting flange and shaft configuration
The motor uses an international standard flange with a 140 mm flange size and 4 mounting holes of 11 mm diameter. The centring collar diameter is 130 mm with a 3.5 mm depth for concentric registration on the adapter plate. The shaft end is a parallel key design with a 24 mm diameter, 50 mm length, and 8 mm key width — torque transmission is through the keyway, not friction fit. There is no second shaft end, so rear-mounted encoder or brake options are not available on this variant.
Electrical parameters and thermal limits
Stator resistance is 0.22 Ohm and stator inductance is 3 mH — these values influence the current ripple magnitude and the drive's switching frequency selection. The continuous stall current is 18 A, while the maximum RMS current is 62.32 A for transient peak torque demand. The winding insulation class is rated for a copper hot temperature of 135 °C. The maximum radial force on the shaft is 2420 N at 1000 rpm, derating to 1670 N at 3000 rpm — this is a bearing life constraint for belt or direct-drive loads.
For traceability and validation documentation, the manufacturer provides standard compliance documentation including RoHS and REACH declarations.