2500 W continuous power, torque curve across supply voltages
The SH31004P0AA3000 is a 2500 W continuous-power servo motor from the Schneider Electric SH3 family, built for three-phase supplies. Its nominal torque depends on the line voltage: 9.5 N.m at 230 V single-phase, 7.9 N.m at 400 V three-phase, and 6.9 N.m at 480 V three-phase — the torque drops as voltage rises because the current limit stays fixed. The continuous stall torque is 10 N.m across the 115...480 V three-phase range, so the motor holds full torque at zero speed regardless of the supply within that window. Nominal speed also shifts with the supply: 1500 rpm on 230 V single-phase, 3000 rpm on 400 V three-phase, and 3600 rpm on 480 V three-phase. The maximum mechanical speed is 6000 rpm, which sets the overspeed ceiling for the application — the drive must limit the commanded speed below that to avoid mechanical overstress.
Absolute single-turn Hiperface DSL encoder, smooth shaft, no brake
This motor carries an absolute single-turn Hiperface DSL encoder — it reports position on power-up without a homing cycle, which saves time on multi-axis lines where the controller needs to know each axis's location immediately after a power cycle. The single-turn resolution covers one mechanical revolution; for applications needing multi-turn position tracking, a different encoder variant is required. The shaft is smooth (no keyway), 24 mm diameter by 50 mm long, with a 100 mm international standard flange and a 95 mm centring collar. The smooth shaft means the load coupling must use a clamping or friction-based hub — no keyseat to transmit torque. The motor has no holding brake, so the load must be held by the drive's holding torque or an external brake when power is off. Electrical connection is via a rotatable right-angled connector and a quicklock straight connector — the right-angled version lets the cable exit at 90° to the motor axis, useful in tight panel layouts where straight cable clearance is limited. The IP65 rating on the motor body (IP54 at the shaft bushing without the seal ring) means it handles washdown in food or packaging lines, but the shaft seal must be fitted if the environment is wet.
Thermal limits, inertia, and force ratings for load matching
Stator resistance is 1.8 Ω and inductance is 13 mH, which sets the electrical time constant and influences the drive's current-loop tuning. The continuous stall current is 6.2 A, and the maximum RMS current is 32.3 A — the peak stall torque of 40.5 N.m is available for short-duration acceleration, but the continuous torque is limited by the 6.2 A thermal limit. Cooling is natural convection, so no external fan or coolant is needed, but the motor must be mounted with free air circulation around the frame. Maximum axial force is 20 N and radial force varies with speed: 130 N at 1000 rpm, 105 N at 2000 rpm, 90 N at 3000 rpm. These limits govern the allowable belt tension or gear-mesh forces on the shaft — exceeding them shortens bearing life. The motor has 4 poles, so the electrical frequency at 3000 rpm is 100 Hz.
The sizing reference is SH31004P, which groups this motor with others in the same frame and winding family. The flange size is 100 mm (3.9 in) and the overall length is 276.5 mm (10.9 in) — these dimensions matter for the mechanical envelope in the machine frame. The mounting holes are 9.0 mm diameter on the standard international flange pattern.