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We supply a wide range of different types of motors including synchronous and asynchronous AC motors, brushed and brushless DC motors, and EC motors
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E. Preston Electrical

Motors

What are the different types of Motors?

AC Motors (Alternating Current)

Synchronous Motors:

  • Excited Synchronous Motor: Requires a separate DC supply for the rotor.
  • Reluctance Motor: Uses magnetic reluctance to generate torque.
  • Hysteresis Motor: Utilizes hysteresis in the rotor material for smooth operation.

Asynchronous (Induction) Motors:

  • Squirrel Cage Induction Motor: Commonly used due to its simplicity and durability
  • Slip Ring (Wound Rotor) Induction Motor: Allows for control of the rotor resistance

DC Motors (Direct Current)

Brushed DC Motors:

  • Series Wound DC Motor: High starting torque, used in traction applications.
  • Shunt Wound DC Motor: Constant speed, used in applications requiring stable speed.
  • Compound Wound DC Motor: Combines series and shunt characteristics.

Brushless DC Motors:

  • Permanent Magnet DC Motor (PMDC): Uses permanent magnets for the rotor.
  • Coreless or Ironless DC Motors: Lightweight and efficient 

EC Motors (Electronically Commutated)

  • Energy Efficiency: EC motors consume less power compared to traditional AC motors, making them ideal for HVAC systems and industrial applications.
  • Brushless Design: Unlike conventional DC motors, EC motors use electronic commutation instead of carbon brushes, reducing wear and maintenance.
  • Integrated Electronics: They have built-in controllers that optimize performance and allow for variable speed control.
  • Compact & Versatile: EC motors are commonly used in fans, pumps, refrigeration systems, and ventilation units
Motor 3

What Do We Supply?

We supply a wide range of motors for a variety of applications.
These include:
AC Motors
DC Bushless Motors
DC Brush Motors
EC Brushless Motors
High-power Density Motors
Stepper Motors
Servo Motors

Why Choose E. Preston?

Since our inception in 1980, our business focus has been on providing two things: a reputation for outstanding customer service, and an unbeatable range and stock of electrical and electronic components.

We feel we have achieved that at E Preston, and that probably explains our company growth over the years. We do not want to become complacent though, and we always work hard to exceed customers’ expectations when they deal with us, if we can.

Our service is unashamedly a little old fashioned, ensuring we follow up on promises to customers, and phoning back when we said we were going to. We also do our best to ensure the customer receives their order next day. You can also talk to us about flexible payment terms, if needed.

Please contact us if you need technical assistance about them or any of our products – our team of expert operatives will be happy to help.

to discuss your needs.

Featured Products

Manufacturers

News

July 15, 2025

Finder 68 Series PCB Relays

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Finder High Power Relays 32 - 40 - 100 Amp

Finder 68 series

The 68 Series includes a range of mount high power relays, ideal for EV chargers up to 55 kW (3-phase) and other high power applications.

Function & Features:

  • Contact gap ≥ 3.6 mm (according to VDE 0126-1-1,
    EN 62109-1, EN 62109-2)
  • DC coils, with 700 mW holding power
  • Reinforced insulation between coil and contacts
  • Suitable for use at ambient temperatures
    up to 85 °C
  • Conforms to EN 60335-1 resistance to heat and
    fire (GWIT 775 °C e GWFI 850 °C).
  • Cadmium-free contacts

Applications:

  • Power Generators
  • Back-Up Generators
  • Pump Controls
  • Disabled lifts
  • Inverters
  • Charging Stations

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

MORE
July 11, 2025

Crouzet AC Synchronous and DC Stepper Motors for All Needs

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Crouzet sync & stepper motors

AC Synchronous Motors

AC Synchronous Motors are the best solution for applications that require constant movement and a low torque, like in in medical equipment, valves, pumps and water treatment. Their rotation speed is directly proportional to the supply frequency, that means it’s always constant and independent from the load.

DC Stepper Motors

DC Stepper Motors are a great choice for simple applications that require long durability and easy integration, like small HVAC systems, photocopy machines, plot-ters, medical pumps and drip feeders, or vending and gaming machines.

Gearboxes

To meet the perfect speed and torque levels for the great majority of applications, we offer a complete range of gearboxes, with a wide variety of ratios, for adjusting our motors.

Each gearbox has been designed for a specific workload and optimized for a long mechanical life, with a big capacity to absorb the maximum torque in continus movement.

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

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