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. 918-0723
BrandRS PRO
MYR150.50
Each
units
9.5 W - 50Hz Synchronous Geared 240 V 1 375 rpm - Spur - - 4mm 10mm 70 (Dia.)mm
RS Stock No. 918-0818
BrandRS PRO
MYR188.08
Each
units
5.8 W - 50Hz Synchronous Geared 240 V 1 4 rpm - Spur - - 6.35mm 13mm 65mm
RS Stock No. 918-0742
BrandRS PRO
MYR157.95
Each
units
3.6 W - 50Hz Synchronous Geared 230 V 1 500 rpm 1 Spur 20:1 - 3mm 7mm 78mm
RS Stock No. 918-0789
BrandRS PRO
MYR157.95
Each
units
3.6 W - 50Hz Synchronous Geared 230 V 1 500 rpm 1 Spur 25:1 - 3mm 7mm 78mm
RS Stock No. 918-0770
BrandRS PRO
MYR157.95
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
MYR167.67
Each
units
0.15 W - 50Hz Synchronous Geared 230 V 1 0.91 rpm 1 Spur - - 2mm 7mm 36 (Dia.)mm
RS Stock No. 187-9845
BrandRS PRO
MYR513.82
Each
units
0.25 kW IE1 50Hz - 400 V 3 2765 rpm 2 - - Foot Mount 11j6 23mm 188mm
RS Stock No. 187-9880
BrandRS PRO
MYR1,930.47
Each
units
4 kW IE3 50Hz - 400 V 3 1440 rpm 4 - - Foot Mount 28j6 60mm 328.5mm
RS Stock No. 187-9894
BrandRS PRO
MYR4,003.81
Each
units
11 kW IE3 50Hz - 400 V 3 1470 rpm 4 - - Foot Mount 42k6 110mm 553.5mm
RS Stock No. 918-0843
BrandRS PRO
MYR266.43
Each
units
3.6 W - 50Hz Synchronous Geared 230 V 1 1 rpm 1 Spur - - 3mm 7mm 68mm
RS Stock No. 187-9861
BrandRS PRO
MYR901.72
Each
units
1.1 kW IE3 50Hz - 400 V 3 2835 rpm 2 - - Flange Mount 19j6 40mm 199.5 Dia.mm
RS Stock No. 187-9883
BrandRS PRO
MYR2,448.10
Each
units
5.5 kW IE3 50Hz - 400 V 3 2945 rpm 2 - - Flange Mount 38k6 80mm 299 Dia.mm
RS Stock No. 187-9869
BrandRS PRO
MYR1,246.66
Each
units
2.2 kW IE3 50Hz - 400 V 3 2895 rpm 2 - - Foot Mount 24j6 50mm 293mm
RS Stock No. 187-9867
BrandRS PRO
MYR1,110.92
Each
units
1.5 kW IE3 50Hz - 400 V 3 1445 rpm 4 - - Foot Mount 24j6 50mm 293mm
RS Stock No. 918-0773
BrandRS PRO
MYR175.50
Each
units
0.42 W - 50Hz Synchronous Geared 230 V 1 15 rpm 1 Spur 100/3:1 - 3mm 7mm 60mm
RS Stock No. 187-9865
BrandRS PRO
MYR967.44
Each
units
1.5 kW IE3 50Hz - 400 V 3 2920 rpm 2 - - Foot Mount 24j6 50mm 293mm
RS Stock No. 187-9856
BrandRS PRO
MYR710.51
Each
units
0.75 kW IE3 50Hz - 400 V 3 2895 rpm 2 - - Foot Mount 19j6 40mm 237.5mm
RS Stock No. 187-9887
BrandRS PRO
MYR2,824.16
Each
units
7.5 kW IE3 50Hz - 400 V 3 2955 rpm 2 - - Foot Mount 38k6 80mm 373mm
RS Stock No. 187-9877
BrandRS PRO
MYR1,773.99
Each
units
4 kW IE3 50Hz - 400 V 3 2920 rpm 2 - - Foot Mount 28j6 60mm 328.5mm
RS Stock No. 187-9892
BrandRS PRO
MYR3,914.46
Each
units
11 kW IE3 50Hz - 400 V 3 2945 rpm 2 - - Foot Mount 42k6 110mm 553.5mm