Reading the SH32051P12F1200 in a panel layout
The SH32051P12F1200 sits in the SH3 servo family, 205 mm flange, with the order-code sizing reference SH32051P12F1200P fixing the windings, encoder and brake options for a given drive pairing. Body length is 14.6 in (370.5 mm), the shaft is 1.5 in (38 mm) diameter with a 0.4 in (10 mm) parallel key and 3.1 in (80 mm) shaft length — the dimensional envelope a cabinet builder needs to clear for the gearbox or coupling on the driven end.
Torque envelope and the four mains voltages
Continuous stall torque is 326.6 lbf.in (36.9 N.m); nominal torque is voltage-dependent — 282.3 lbf.in (31.9 N.m) at 115 V single phase, 239.0 lbf.in (27 N.m) at 230 V single phase, 154.9 lbf.in (17.5 N.m) at 400 V three phase, and 122.1 lbf.in (13.8 N.m) at 480 V three phase — the same frame delivers less nominal torque at higher bus voltage because the speed rises with the supply. Nominal output power tracks the same curve: 2510 W at 115 V single phase, 4240 W at 230 V single phase, 5500 W at 400 V three phase, and 5200 W at 480 V three phase — the 400 V three-phase point is where the 5500 W continuous power figure on the nameplate is set. Nominal speed covers 750 rpm at 115 V single phase, 1500 rpm at 230 V single phase, 3000 rpm at 400 V three phase, and 3600 rpm at 480 V three phase — pairing this frame with a 400 V drive lands the operating point at 3000 rpm / 5500 W, which is the natural selection for high-throughput packaging and converting lines.
Drive-side constants the commissioning engineer needs
Back-EMF constant Ke is 104 V/krpm at 68 °F (20 °C); torque constant Kt is 1.75 N.m/A at 248 °F (120 °C) — the drive's current loop and the motor's torque-per-amp scaling have to be set from these, not from the headline watts. Stator resistance is 0.3 Ohm and stator inductance is 2.97 mH; peak current Irms and 3-second peak output current are both 87.2 A — the figure a sizing tool uses to verify the drive's short-term current ceiling exceeds the motor's demand during accel/decel. Five motor poles, copper hot-spot limit 266 °F (130 °C), natural convection cooling — there is no integrated fan, so cabinet airflow and the mounting flange's thermal path carry the continuous-torque heat out.
Mechanical loading and the brake package
Centring collar depth is 0.2 in (4 mm) on the 8.07 in (205 mm) flange — the collar is what registers the motor concentric to the gearbox input, so the mating half must have a matching register to keep radial runout inside the bearing rating.