AC Motors

AC motors are driven by an alternating current and are a highly efficient way of turning electrical energy into mechanical motion. AC motors differ from DC (Direct Current) Motors in that they are brushless, meaning less need for maintenance and a typically longer life expectancy. Unlike DC motors, the output speed for AC motors is typically controlled by a frequency drive control.

What are the types of AC motors?

The RS Range of AC motors includes the following:

  • AC Induction Motors

    : Typically used in kitchen appliances, automobiles and industrial machinery, induction motors have an output rotation speed that is proportional to its applied frequency of the alternate current.
  • AC Synchronous Motors

    : So-called because the speed of the rotor is proportional to the stator, synchronous AC motors are used where accuracy is an important factor, such as clocks and timers.
  • AC Squirrel Cage Motors

    : A type of induction motor that uses a cage rotor instead of a wound rotor, and as such is considered to be more rugged and less maintenance heavy. Squirrel cage induction motors are often used in applications where a low starting torque is required and no speed control is needed, such as pumps and air compressors.
  • AC Shaded Pole Motors

    : A single-phase squirrel cage motor that uses an auxiliary winding composed of either a copper ring or bar, called a shading coil. Unlike standard squirrel cage motors, they are suited for multiple speeds and are often used in fans.
  • AC Geared Motors

    : Integrate a gear reducer with an electric AC motor to deliver high torque at low speed or low horsepower. Operating at low speed allows these motors to exert greater power.
  • AC Servo Motors

    : a rotary actuator that allows for precise control of angular position. The motor is attached by gears to the control wheel, as the motor rotates, the position sensors resistance changes, so the control circuit can precisely regulate movement.
  • AC Stepper Motors

    : used as an output in electronic circuits, it divides a full rotation into a number of equal steps.

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Description Price Power Rating Efficiency Class Frequency Rating AC Motor Type Supply Voltage Phase Output Speed Number of Poles Gearhead Type Gear Ratio Mounting Type Shaft Diameter Shaft Length Width
RS Stock No. 918-0782
BrandRS PRO
SGD22.58
Each
units
1.4 W - 50Hz Synchronous Geared 240 V - 375 rpm - Spur - - 1.5mm 7.5mm 65.8mm
RS Stock No. 918-0877
BrandRS PRO
SGD40.02
Each
units
2.1 W - 50Hz Synchronous Geared 230 V 1 6 rpm 1 Spur - - 2mm 7.5mm 65.8mm
RS Stock No. 918-0726
BrandRS PRO
SGD27.14
Each
units
3.1 W - 50Hz Synchronous Geared 240 V 1 250 rpm 1 Spur - - 3mm 7mm 51.5 (Dia.)mm
RS Stock No. 918-0815
BrandRS PRO
SGD67.82
Each
units
9.5 W - 50Hz Synchronous Geared 240 V 1 45 rpm - Spur - - 4mm 10mm 65mm
RS Stock No. 187-9883
BrandRS PRO
SGD811.38
Each
units
5.5 kW IE3 50Hz - 400 V 3 2945 rpm 2 - - Flange Mount 38k6 80mm 299 Dia.mm
RS Stock No. 918-0742
BrandRS PRO
SGD47.45
Each
units
3.6 W - 50Hz Synchronous Geared 230 V 1 500 rpm 1 Spur 20:1 - 3mm 7mm 78mm
RS Stock No. 187-9859
BrandRS PRO
SGD284.05
Each
units
0.75 kW IE3 50Hz - 400 V 3 1410 rpm 4 - - Flange Mount 19j6 40mm 199.5 Dia.mm
RS Stock No. 187-9861
BrandRS PRO
SGD298.86
Each
units
1.1 kW IE3 50Hz - 400 V 3 2835 rpm 2 - - Flange Mount 19j6 40mm 199.5 Dia.mm
RS Stock No. 187-9892
BrandRS PRO
SGD1,297.38
Each
units
11 kW IE3 50Hz - 400 V 3 2945 rpm 2 - - Foot Mount 42k6 110mm 553.5mm
RS Stock No. 187-9887
BrandRS PRO
SGD936.02
Each
units
7.5 kW IE3 50Hz - 400 V 3 2955 rpm 2 - - Foot Mount 38k6 80mm 373mm
RS Stock No. 187-9895
BrandRS PRO
SGD1,286.29
Each
units
11 kW IE3 50Hz - 400 V 3 1470 rpm 4 - - Flange Mount 42k6 110mm 349.5 Dia.mm
RS Stock No. 187-9877
BrandRS PRO
SGD587.96
Each
units
4 kW IE3 50Hz - 400 V 3 2920 rpm 2 - - Foot Mount 28j6 60mm 328.5mm
RS Stock No. 187-9858
BrandRS PRO
SGD254.74
Each
units
0.75 kW IE3 50Hz - 400 V 3 1410 rpm 4 - - Foot Mount 19j6 40mm 237.5mm
RS Stock No. 187-9890
BrandRS PRO
SGD1,077.96
Each
units
7.5 kW IE3 50Hz - 400 V 3 1460 rpm 4 - - Flange Mount 38k6 80mm 299 Dia.mm
RS Stock No. 918-0798
BrandRS PRO
SGD27.63
Each
units
1.5 W - 50Hz Synchronous Geared 240 V 1 8.55 rpm 1 Spur - - 2mm 7mm 65.8mm
RS Stock No. 187-9869
BrandRS PRO
SGD413.18
Each
units
2.2 kW IE3 50Hz - 400 V 3 2895 rpm 2 - - Foot Mount 24j6 50mm 293mm
RS Stock No. 918-0859
BrandRS PRO
SGD98.25
Each
units
3.6 W - 50Hz Synchronous Geared 230 V 1 0.5 rpm 1 Spur - - 3mm 7mm 107mm
RS Stock No. 918-0745
BrandRS PRO
SGD13.56
Each
units
0.42 W - 50Hz Synchronous Geared 240 V - 375 rpm - - - - 1.5mm 7.5mm 42 (Dia.)mm
RS Stock No. 187-9847
BrandRS PRO
SGD200.68
Each
units
0.25 kW IE1 50Hz - 400 V 3 1375 rpm 4 - - Flange Mount 14j6 30mm 159.5 Dia.mm
RS Stock No. 187-9898
BrandRS PRO
SGD1,557.26
Each
units
15 kW IE3 50Hz - 400 V 3 1470 rpm 4 - - Foot Mount 42k6 110mm 553.5mm