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

For more information on AC Motors please see our comprehensive guide:https://uk.rs-online.com/web/generalDisplay.html?id=ideas-and-advice/ac-motors-guide

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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. 441-0423
Mfr. Part No.9904 111 31813
TWD3,039.00
Each
units
1.8 W - - Synchronous 110 V ac 1 250 rpm @ 230 V 24 - - Flange Mount 3mm 12.7mm -
RS Stock No. 424-207
Mfr. Part No.M91X40G4GGA
BrandPanasonic
TWD7,424.00
Each
units
40 W - - Induction 230 V ac 1 1275 rpm @ 230 V 4 - - - - - 90mm
RS Stock No. 204-4888
Mfr. Part No.82524004
BrandCrouzet
TWD4,008.00
Each
units
3.5 W - - Synchronous Geared 230 → 240 V ac - 10 rpm - - - - 4mm 10mm 56mm
RS Stock No. 454-8326
Mfr. Part No.FB1037
TWD4,251.00
Each
units
24 W - - Shaded Pole Geared 230 V ac - 2 rpm - Spur - - 12mm - -
RS Stock No. 440-391
Mfr. Part No.82520001
BrandCrouzet
TWD2,901.00
Each
units
0.98 W - - Synchronous 230 → 240 V ac 2 250 rpm @ 240 V 24 - - - 2mm 7.4mm -
RS Stock No. 127-0240
Mfr. Part No.MBMU1E2AZ
BrandPanasonic
TWD13,560.00
Each
units
130 W - - Brushless 200 V 1, 3 3000 rpm 8 - - - 8mm 30mm 59.5mm
RS Stock No. 332-802
Mfr. Part No.9904 111 32311
BrandPhilips
TWD2,515.00
Each
units
1.7 W - - Synchronous 110 → 240 V ac 2 300 rpm @ 110 V 24 - - - 2mm 7.8mm -
New
RS Stock No. 229-9214
Mfr. Part No.TH71A4 0,25 230/400-50 B3 MV CN
BrandMotovario
TWD4,401.00
Each
units
250 W IE2 - Induction 230/400 V 3 - 4 - - - - - -
New
RS Stock No. 217-6448
Mfr. Part No.1FK2102-1AG10-0MA0
BrandSiemens
TWD29,567.00
Each
units
100 W - - Synchronous 240 V - - - - - Flange Mount - - -
RS Stock No. 125-0502
Mfr. Part No.82540028
BrandCrouzet
TWD7,790.00
Each
units
0.3 → 3 W - - Geared 24 V - 250 → 600 rpm - Parallel Shaft - - - - -
RS Stock No. 779-3734
Mfr. Part No.FMJ7201FB1
TWD659.00
Each
units
4 W - - Synchronous Geared 220 → 240 V ac 1 2.5 rpm, 3 rpm - - - - 7mm 19mm 64.4mm
New
RS Stock No. 217-6449
Mfr. Part No.1FK2103-2AG00-1MA0
BrandSiemens
TWD26,210.00
Each
units
200 W - - Synchronous 240 V - - - - - Flange Mount - - -
RS Stock No. 181-2315
Mfr. Part No.82334751
BrandCrouzet
TWD3,956.00
Each
units
3 W - - Synchronous Geared 230 V ac - 1 rpm - Ovoid - - 4mm 10mm 55.5mm
New
RS Stock No. 229-9215
Mfr. Part No.TH71A4 0,25 230/400-50 B5 MV CN
BrandMotovario
TWD4,401.00
Each
units
250 W IE2 - Induction 230/400 V 3 - 4 - - - - - -
RS Stock No. 187-9886
BrandRS PRO
TWD19,118.00
Each
units
5.5 kW IE3 50Hz - 400 V 3 1465 rpm 4 - - Flange Mount 38k6 80mm 299 Dia.mm
New
RS Stock No. 215-8316
Mfr. Part No.R88M-K5K020C-S2
BrandOmron
TWD111,603.00
Each
units
5 kW - - - 400 V 3 - - - - - - - -
New
RS Stock No. 223-3826
Mfr. Part No.1FK2104-4AK10-2SA0
BrandSiemens
TWD27,922.00
Each
units
600 W - - Synchronous 380 → 480 V - - - - - - - - -
New
RS Stock No. 215-8277
Mfr. Part No.R88M-1M7K515C-S2
BrandOmron
TWD184,811.00
Each
units
7.5 kW - - - 400 V 3 - - - - - - - -
RS Stock No. 187-9858
BrandRS PRO
TWD5,833.00
Each
units
0.75 kW IE3 50Hz - 400 V 3 1410 rpm 4 - - Foot Mount 19j6 40mm 237.5mm
New
RS Stock No. 214-7412
Mfr. Part No.R88M-G1K530T-BS2
BrandOmron
TWD103,145.00
Each
units
1.5 kW - - - 200 V 1 - - - - - - - -