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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

March 4, 2026

Finder Power Supplies: 78 Series / OPTA

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Finder 78 Series / OPTA Power Supplies

Finder 78 OPTA Series PS

78 Series Switch Mode Power Supplies

Finder 78 Series PS

The 78 Series is a range of low profile
modular power supplies for electrical
cabinets and industrial switch mode power
supplies. KNX power supply with rated output
30V DC 640mA available.

Function & Features (according to type):

  • Output powers 12, 36, 50, 60, 120 or 130 W
  • Input (110 … 240) V AC or 220 V DC
  • Class B according to EN 55022
  • Replaceable input protection fuse plus spare
  • Varistor for protection against overvoltages
  • Width 17.5, 40 or 70 mm

Applications:

  • Building Automation
  • Elevators and Lifts
  • Automation for Blinds, Grilles and Shutters
  • Hoists and Cranes
  • Panels for Electrical Distribution
  • Pump Control

OPTA Power Supply

Finder OPTA PS2

Optimal Performance and Maximum Protection with Finder's Power Supply Type 78.12….2482, specifically designed for use with OPTA

Providing the power needed to operate Finder’s PLRs (Programmable Logic Relays), the OPTA power supply provides a 24 V DC supply voltage, and can handle high inrush currents.

The OPTA power supply is also surge protected – from surges attributable to the power grid, overheating, short-circuits, and those generated by other connected devices – ensuring a reliable and durable product.

The OPTA power supply is also suitable for use in SELV (safety extra-low voltage) systems (according to EN 60950). The Type 78.12….2482 has attained ENEC and UL certifications – attesting its compliance with international safety standards.
Here are some of its features and specifications.

Features & Specifications:

  • 17.5 mm (1 module) x 61 mm deep
  • Low (< 0.4 W) stand-by power consumption
  • Thermal protection: internal, with Vout shutdown – power OFF to reset
  • Short circuit protection: Hiccup (auto-recovery) mode
  • Overvoltage protection: Varistor
  • Flyback topology
  • Compliant with EN 60950-1 and EN 61204-3
  • Parallel working for automatic redundancy – with OR diodes
  • Dual Polarity and Series connection permissible
  • 35mm rail (EN 60715) mount

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

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

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February 26, 2026

Schurter MSM II MO M12 Switch & Connector

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Schurter MSM II Pic

MSM II-Switch with M12 Connector

  • Optimized for industrial control architectures
  • Accustomed SCHURTER Metal Line quality
  • IP Protection Class IP67

With the new switch from the MSM II family with M12 connector (8 pins), Schurter is focusing on a solution that has been specially developed for demanding industrial and commercial applications. Thanks to the M12 connector system, robust construction, and integrated RGB illumination, this switch combines maximum reliability, functionality, and modern design in a compact unit.

The standardized M12 connector ensures fast, secure, and error-free installation—without any complicated wiring. Thanks to the fixed pin assignment, wiring errors are effectively avoided, which not only simplifies installation but also speeds it up considerably.

The mechanical design is made for permanent industrial use—shockproof, vibration-resistant, and resistant to tough environments. This means the switch will keep working reliably for years, even in extreme conditions.

The three-color RGB illumination provides clear status indication or individual signals. Example: green = active; red = off; flashing orange = error condition. This makes the switch ideal for machine controls, control systems, or user interfaces.

The new Schurter MSM II M12 switch is suitable for applications where installations must be made quickly, easily, and safely. It is used in industrial automation, machine and plant engineering, as well as in public and commercial areas where clear signaling and high reliability are required.

Schurter MSM II App

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

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

MORE
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