5.5 kW servo motor, 3000 rpm, IP65 — SH3 series
The SH32051P11F2100 is a 5-pole servo motor from the SH3 series, delivering 5.5 kW continuous power at 400 V three-phase input and a nominal speed of 3000 rpm. It carries an IP65 rating per IEC 60034-5 on both the motor body and shaft bushing, making it suitable for washdown environments and dusty production floors without an additional enclosure. The motor is fitted with a holding brake rated at 80 N.m holding torque, and an absolute single-turn SinCos Hiperface encoder for position feedback without homing on power-up.
Torque and speed across supply voltages
Nominal torque varies with supply: 31.9 N.m at 115 V single-phase, 27 N.m at 230 V single-phase, 17.5 N.m at 400 V three-phase, and 13.8 N.m at 480 V three-phase — the 400 V three-phase configuration delivers the highest continuous power at 5.5 kW. Peak stall torque reaches 110 N.m across the 115–480 V three-phase range, with a continuous stall torque of 36.9 N.m under the same conditions — the 3-second peak current of 87.2 A defines the short-term overload margin. The torque constant is 1.75 N.m/A at 120 °C copper temperature, and the back EMF constant is 104 V/krpm at 20 °C — these values set the drive tuning parameters for current-loop gain and velocity feedforward.
Mechanical interface and mounting
The motor mounts via an international standard flange with a 205 mm flange size and four 14 mm mounting holes — the centring collar depth is 4 mm, and the shaft is a 38 mm diameter parallel key with a 10 mm key width and 80 mm shaft length. Overall length is 370.5 mm, and the electrical connection uses a rotatable right-angled connector — the straight connector variant is also listed, giving flexibility in cable exit orientation for tight cabinet layouts. Maximum radial force is 3730 N at 1000 rpm, derating to 2580 N at 3000 rpm; maximum axial force is 740 N — these limits govern bearing life in belt-drive or direct-coupling applications.
Electrical parameters and cooling
Stator resistance is 0.3 Ohm and stator inductance is 2.97 mH — these values determine the electrical time constant and the minimum PWM frequency for acceptable current ripple. Cooling is by natural convection — no external fan or forced air is required, simplifying installation in clean environments but limiting duty cycle under sustained peak torque.