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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 3, 2026

Schurter Series: 4750 Strip Block for Snap-in Mounting

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4750 Strip Block for Snap-in Mounting with up to 7 IEC Appliance Outlets F

Shurter

The Schurter 4750 Series is a configurable, snap-in mounting strip block designed for high-density intelligent Power Distribution Units (PDUs) and data center equipment. It compactly houses 2 to 7 IEC Appliance Outlets (Type F) and eliminates the need for external LEDs by integrating optional light pipes for status indication.

Description:

  • Panel mount
  • Snap-in version front side (1.2 / 1.5 / 1.7 mm)
  • Configurable Strip block from 2 up to 7 outlets type F
  • Cord retention for cordsets with V-Lock, Twylock or P-Lock
  • Pre-assembled Light Pipe for status indication
  • Solder / PCB / QC (4.8 / 6.3 x 0.8) mm

Key Features:

  • Configurable Bus bar (L, N, PE)
  • Optionally with or without light pipes on L or N side
  • Color coding in black (grey and white upon request)
  • Solder / PCB / QC (4.8 / 6.3 x 0.8 mm)

Characteristics:

  • Compact solution for intelligent PDU applications
  • Suitable for use in equipment according to IEC/UL 62368-1

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

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

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July 2, 2026

Finder 77 Series: Modular Solid State Relays (SSR) 5-15-30A

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77 Series: Modular Solid State Relays (SSR) 5-15-30A

Finder 77 Series

The 77 Series is made up of modular and “hocky puck” style solid state relays

Functions & Features (according to Type):

  • Input AC or DC
  • 230V AC or 400V AC output
  • Rated voltage range (19…305)V AC or (48…480)V AC
  • Zero-crossing and random switch-on versions
  • Suitable for lamp loads
  • 17.5 and 22.5 mm housing

Features (“hockey puck”):

  • Input AC or DC
  • 230 V AC or 400 V AC output
  • Switching voltage range (19…305) V AC or (48…480) V AC
  • Suggested applications: heater control
  • Mounting to heatsink with screws
  • Zero-crossing version

Applications:

  • Drying kilns
  • Heating and cooling
  • Lighting control in corridors (for hotels, offices and hospitals)
  • Bottling plant
  • Labelling machines
  • Packaging machines

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

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

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