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 Mounting Type Gear Ratio Shaft Diameter Shaft Length Length
RS Stock No. 918-0818
BrandRS PRO
MYR208.98
Each
units
5.8 W - 50Hz Synchronous Geared 240 V 1 4 rpm - Spur - - 6.35mm 13mm 65mm
RS Stock No. 918-0723
BrandRS PRO
MYR167.22
Each
units
9.5 W - 50Hz Synchronous Geared 240 V 1 375 rpm - Spur - - 4mm 10mm 44.8mm
RS Stock No. 918-0742
BrandRS PRO
MYR175.50
Each
units
3.6 W - 50Hz Synchronous Geared 230 V 1 500 rpm 1 Spur - 20:1 3mm 7mm 72mm
RS Stock No. 918-0770
BrandRS PRO
MYR175.50
Each
units
0.42 W - 50Hz Synchronous Geared 230 V 1 20 rpm 1 Spur - 25:1 3mm 7mm 60mm
RS Stock No. 918-0887
BrandRS PRO
MYR186.30
Each
units
0.15 W - 50Hz Synchronous Geared 230 V 1 0.91 rpm 1 Spur - - 2mm 7mm -
RS Stock No. 918-0789
BrandRS PRO
MYR175.50
Each
units
3.6 W - 50Hz Synchronous Geared 230 V 1 500 rpm 1 Spur - 25:1 3mm 7mm 72mm
RS Stock No. 187-9898
BrandRS PRO
MYR5,634.34
Each
units
15 kW IE3 50Hz - 400 V 3 1470 rpm 4 - Foot Mount - 42k6 110mm 307mm
RS Stock No. 918-0855
BrandRS PRO
MYR309.50
Each
units
3.6 W - 50Hz Synchronous Geared 230 V 1 30 rpm 1 Spur - - 3mm 7mm 60mm
RS Stock No. 187-9876
BrandRS PRO
MYR1,848.94
Each
units
3 kW IE3 50Hz - 400 V 3 1430 rpm 4 - Flange Mount - 28j6 60mm -
RS Stock No. 187-9851
BrandRS PRO
MYR729.00
Each
units
0.37 kW IE1 50Hz - 400 V 3 1325 rpm 4 - Flange Mount - 14j6 30mm -
RS Stock No. 187-9878
BrandRS PRO
MYR2,107.21
Each
units
4 kW IE3 50Hz - 400 V 3 2920 rpm 2 - Flange Mount - 28j6 60mm -
RS Stock No. 187-9852
BrandRS PRO
MYR647.62
Each
units
0.55 kW IE1 50Hz - 400 V 3 2800 rpm 2 - Foot Mount - 14j6 30mm 138mm
RS Stock No. 187-9899
BrandRS PRO
MYR5,936.17
Each
units
15 kW IE3 50Hz - 400 V 3 1470 rpm 4 - Flange Mount - 42k6 110mm -
RS Stock No. 918-0871
BrandRS PRO
MYR219.45
Each
units
3.6 W - 50Hz Synchronous Geared 230 V 1 30 rpm 1 Spur - - 3mm 7mm 55.2mm
RS Stock No. 918-0745
BrandRS PRO
MYR50.16
Each
units
0.42 W - 50Hz Synchronous Geared 240 V - 375 rpm - - - - 1.5mm 7.5mm -
RS Stock No. 918-0802
BrandRS PRO
MYR208.98
Each
units
5.8 W - 50Hz Synchronous Geared 240 V 1 1 rpm - Spur - - 6.35mm 13mm 65mm
RS Stock No. 187-9886
BrandRS PRO
MYR2,835.81
Each
units
5.5 kW IE3 50Hz - 400 V 3 1465 rpm 4 - Flange Mount - 38k6 80mm -
RS Stock No. 187-9877
BrandRS PRO
MYR1,928.25
Each
units
4 kW IE3 50Hz - 400 V 3 2920 rpm 2 - Foot Mount - 28j6 60mm 226mm
RS Stock No. 918-0726
BrandRS PRO
MYR100.39
Each
units
3.1 W - 50Hz Synchronous Geared 240 V 1 250 rpm 1 Spur - - 3mm 7mm -
RS Stock No. 187-9881
BrandRS PRO
MYR2,277.31
Each
units
4 kW IE3 50Hz - 400 V 3 1440 rpm 4 - Flange Mount - 28j6 60mm -