660 W continuous, 2.94 N·m stall — the load-matching baseline
The SH31001M12A1000 is a 4-pole, three-phase servo motor delivering 660 W continuous power. The continuous stall torque is 2.94 N·m across the 115–480 V three-phase range; peak stall torque reaches 9.6 N·m under the same supply conditions. This torque-versus-speed envelope defines the mechanical load it can move and hold without thermal overload — the continuous stall figure governs steady-state positioning, while the peak figure covers acceleration and emergency stops. Nominal output power varies with the supply voltage: 210 W on 115 V single-phase, 410 W on 230 V single-phase, 790 W on 400 V three-phase, and 930 W on 480 V three-phase. The nominal speed follows the same pattern — 625 rpm at 115 V single-phase, 1250 rpm at 230 V single-phase, 2500 rpm at 400 V three-phase, and 3000 rpm at 480 V three-phase. Maximum mechanical speed is 6000 rpm, well above the nominal range, but the torque available above 3000 rpm drops off per the constant-power region of the motor's characteristic.
Absolute multiturn Hiperface encoder — position retention without homing
The encoder is an absolute multiturn SinCos Hiperface type. This means the motor reports its absolute position and the number of shaft revolutions on power-up — no reference run or homing sequence is required after a power cycle. For a pharmaceutical GMP line where every restart must be traceable and repeatable, this eliminates the position-validation step that incremental encoders demand during IQ/OQ. The SinCos analog tracks allow the drive to interpolate position between digital counts, giving sub-micron resolution at the load when paired with a suitable servo drive. The motor carries no holding brake. For vertical-axis applications where the load must stay in position with power off, an external brake or a motor variant with the brake option is required. The straight electrical connector simplifies cable routing — no right-angle strain relief needed on the motor side. The IP rating is IP54 at the shaft bushing without the shaft seal ring, and IP65 with the seal ring fitted. For washdown environments, the IP65 configuration is the minimum entry point; the seal ring must be specified at order time.
Flange mounting and electrical parameters — integration constraints
Mounting uses an international standard flange with a 100 mm flange size. The centring collar diameter is 95 mm with a 3.5 mm depth; the four mounting holes are 9.0 mm diameter on the bolt circle. The shaft is 19 mm diameter, 40 mm long, with a parallel key and 6 mm key width. These dimensions determine the adapter plate or gearbox interface — no custom machining should be needed if the mating part follows IEC standard flange patterns.
The SH31001M12A1000 is part of the SH3 device family, with the sizing reference SH31001M. No pin-compatible alternative within the SH3 series is listed as a direct cross-reference — the motor's torque, speed, and encoder configuration are specific to this order code. For a BOM position that requires the absolute multiturn Hiperface encoder and the 100 mm flange, this is the exact part.