Electric Motors

Power Rating - 0.09kW – 400kW+
Speed - 3000 RPM – 750 RPM
Area Type - Safe Area (IE2/IE3) Hazardous Area – (Ex d/de, EEx nA)
Frame Size - 56 – 355+
Construction - Aluminium, Cast Iron
Supply Details - Single Phase – 230-240V/1/50Hz, 110V/1/50Hz, 110V/1/60Hz
Three Phase – 400-415V/3/50Hz, 440V/3/60Hz, 460V-480V/3/60Hz
Modifications - Special Shafts, Special Flanges, Thermistors, Anti-Condensation, Heaters, Various IP Ratings, Impact Canopy

Some of our motors we can supply:-

  • LVED IE2 Cast Iron (Premium efficiency totally enclosed fan cooled squirrel cage induction motor)
  • ED IE2 Aluminium (Premium efficiency totally enclosed fan cooled squirrel cage induction motor)
  • Advantage Lite Brake (Totally enclosed fan cooled cage induction motor )
  • Advantage Guardian (High temperature resistant smoke extraction )
  • IE2 Open Drip Proof (Open drip proof cage induction motors )
  • EXD Range
  • EXD IIB T4 CE Ex II 2 G
  • EXD IIB T3 on inverter use
  • Cast iron frame, Side mounted terminal box, Enclosure TEFC IP55,
  • Voltage 380–415, 3 phase 50Hz supply, Efficiency Band EFF1 or EFF2,
  • Thermistors, Class F insulation, Class B temperature rise

HWL Technical Solution can supply a solution to your problem with any motor you require:-

Three Phase Motors, Single Phase Motors, High Efficiency Motors, Medium Motors, Two Speed Motors, Brake Motors, ATEX Products for Hazardous Areas, and also specials such as High Thrust Vertical Hollow Shaft Motors , Synchronous Motors, TWMC Induction Motors, Direct Current motors / DC Motors

HWL Technical Solutions was an Idea we had to give our customers a technical solution to their problem within our team with over 50 years of experience with sales and repairs of electric motors, Fans, Pumps, and drives etc.

Our aim is to provide you the customer with the best quality industrial electric motors, drives and controls direct from world leading manufacturers, backed up with low, factory prices, speedy delivery, and a knowledgeable service!

We offer several packages of motors ranging from 0.09 kw to around 700kw. From Europe's leading manufacturers, for AC electric motors, DC electric Motors, AC inverter Drives, DC Drives, Pumps, Gearboxes, Power Inverters.

We can offer a budget priced set up if you up to a better quality system we understand prices and we always keen to advise which to go for.

Three Phase Motors

We can supply three phase motors to directly replace your existing units. Whether you’re looking for one off or high quantities we can provide extremely competitive prices. As listed above is just a few of what we can offer

The best way to describe a Motor is as a transformer with a rotating secondary. Motors, generators, and transformers are similar in that their basic principle of operation involves induction. The premise for motor operation is that if you can create a rotating magnetic field in the stator of the motor, it will induce a voltage in the armature that will have magnetic properties causing it to 'chase' the field in the stator. This premise applies to AC motors that employ a squirrel cage rotor, and it is probably the most simple and basic of all motor designs. The three phase motor is widely used in industry because of its low maintenance characteristics. Due to the nature of three phase power, creating a rotating magnetic field in the stator of this motor is simple and straight forward

Is your new motor is going the wrong way!

If so simply swap any two of the three pole face polarities by changing any two leads of the supply voltage. This is because Phase rotation of any supply voltage is not always the same from one electrical service to the next, any electrician has a fifty-fifty chance of getting the correct direction of rotation when connecting a three phase motor. The phase rotation of the electrical service can be determined with the use of a phase rotation meter, but the way the individual motor was manufactured also determines its direction of rotation. Every three phase motor should be energized for a very brief moment, in order to check rotation before being placed into service.

Three Phase to Single Phase Motor Conversions

Although we can supply three phase motors to directly replace your existing units. It is sometimes necessary to replace your existing three phase motor with a single phase motor if you do not have a three phase supply to your premises

This is generally a common occurrence and all we usually require is nameplate details of your existing electric motor. Which you should e-mail us , However should you require any further assistance, please do not hesitate to contact our friendly team of experience engineers, for simple, honest and helpful advice.

Single Phase Motors

There are two main types of single phase electric motors, permanent capacitor & capacitor start/capacitor run.

Please see the table below to assist you in deciding which type you require.

Permanent Capacitor -

Low Starting Torque for applications such as:

  • Fans
  • Pumps
  • Blowers

Capacitor Start/Capacitor Run -

High Starting Torque for applications such as:

  • Car Lifts/Car Ramps
  • Compressors
  • Woodworking Machinery

HWL offer high quality single phase motors for our customers who rather buy high end quality motors

ML Capacitor Start / Capacitor Run ML Capacitor Start / Capacitor Run (0.37kW to 3.7kW):

IEC standard electric motors are suitable for industrial equipment and domestic applications with a single phase 220/240V supply. Capacitor Start / Capacitor Run (TDA) single phase electric motors are able to handle applications that are too demanding for any other type of single phase electric motor. High starting performance ensures the ML Capacitor Start / Capacitor Run is suitable for agricultural, high pressure washers, vacuum pumps, conveyers, and refrigeration equipment which demand higher starting torque. Key advantages of ML Capacitor Start / Capacitor Run single phase motors High starting torque performance 1.8 - 2.5 High overload rating Multi mount lightweight aluminium frame Cool running to comparable kW powers Clockwise and Anti clockwise with change of connection Rotatable Aluminium terminal box capacitors enclosed

MY Single Phase Permanent Capacitor Run:

MY Permanent Capacitor: MY Single Phase AC Permanent Capacitor (0.18kW to 2.2kW) IEC standard electric motors are suitable for industrial equipment and domestic applications with a single phase 220/240V supply. Permanent capacitor (PSC) single phase motors should not be used in hard to start applications such as woodworking machinery, air compressors, high-pressure water pumps, and vacuumed pumps. ML Capacitor start / Capacitor run are a real powerhouse which is the correct choice for applications that require high starting torque. (Please view the ML Series product range) MY series are ideal for fans, blowers with low starting torque needs, and intermittent cycling uses such as adjusting mechanisms, gate operators and garage door openers, many of which also need instant reversing.

Key advantages MY single phase permanent capacitor motors offer: Speed Controllable Very reliable 0.8 – 1.2 Torque Rated 6 pole and 8 pole on request No mechanical starting mechanism Rotatable top mounted aluminium terminal box (capacitor enclosed) Lightweight Multi mount B3, B5, and B14 options Low starting currents

MY Permanent Capacitor Specifications: IEC Standard Dimensions 220 – 240V AC IP55 suited for wet and dusty environments Class F insulation (40 degrees ambient) Rise B (105 degrees) S1 Duty (Continuous) Multi mount B3, B5 and B14 or a combination mount

Offered modifications include: Specially designed shafts Heaters 110V and 240V DC Klixions Drip cover (canopy) for shaft down applications Special epoxy painting Double shafted Directional drain holes IP up grades Tropicalised windings Thermistors

Applications for Single Phase Motors: The MY series of electric motor has many domestic applications as well as its industrial uses. They are ideally suited for use in fans, blowers, gate operators and garage door operators. The ML series of electric motor provide a higher starting torque than the MY series. This enables the ML series to be used in agricultural machinery as well as pressure washers, vacuum pumps and refrigeration. All of these motors are able to switch between clockwise and counter-clockwise operation instantly and speed is variable. There are several possibilities for mounting these motors to your equipment making this the ideal choice when assembling an adjustment mechanism.

Single Phase Motors - Specification Options: Throughout the range of single phase electric motors we can provide additional modifications which can adapt your choice of motor to its surroundings.

Please get in touch with our team with your requirements and we are more than happy to help you find the right solution to your problem.

One of our most popular services is sourcing replacement motors, as manufacturers change product names, get bought out by bigger companies or just move to another country. For this reason, We also specialise in ‘Hard to Find Products’. If needed, we have access to industry directories and specialist databases which can assist us in our quest. If this is the case contact us.

Understanding Motor Efficiency Ratings
1E1 IE2 IE3 ALSO EFF1 EFF2 EFF3
European Union Directive 640/2009
based on IEC 60034-30

Efficiency Levels
IE1 Standard Efficiency
IE2 High Efficiency For 50 Hz considerably higher than EFF2 of CEMEP and identical to the U.S. EPAct for 60 Hz
IE3 Premium Efficiency New efficiency class in Europe for 50 Hz, higher than EFF1 on CEMEP and with some exceptions identical to NEMA Premium in the United States for 60 Hz.

Definition of motor efficiency

  • The efficiency of an electric motor is defined as the ratio of usable shaft power to electric input power.
  • ?mot = Pshaft ÷ Pin
  • ?mot = motor efficiency [%] Pshaft = shaft Power [kW] ( in USA HP with factor 1.34) Pin = electrical input from power supply [kW]
  • The shaft power is transferred to the machine driven and the electric input power is what is metered and what you have to pay for. Loss in motor efficiency is determined by the difference between the input power and output or shaft power.
  • Ploss = Pin - Pshaft
  • Ploss = losses of electric motor [kW]
  • Motor energy loss is mainly heat caused by many factors, including loss from the coil winding (resistance), loss in the rotor bars and slip rings, loss due to magnetising of the iron core, and loss from friction of bearings, etc.

Star – Delta wiring of a motor but why? Possible starting Torque issues

Why can you have star delta what’s it all about consider Star Delta Starting (or Wye/Delta in the US). This is a reduced voltage starting method.

Voltage reduction during star-delta starting is achieved by physically reconfiguring the motor windings as illustrated in the figure below. During starting the motor windings are connected in star configuration and this reduces the voltage across each winding 3. This also reduces the torque by a factor of three. After a period of time the winding are reconfigured as delta and the motor runs normally.

Star delta connection of a standard Motor.

Are you unsure which way to wire your motor here is a brief idea so you can understand Star wiring against Delta Wiring. Suppose for example that the motor is connected in Star. In a star connection, each one of the 3 phases (R-S-T) is connected at one end of each coil. The other ends of the coils are connected together in a common point. A star connection can be easily accomplished simply by bridging one of the two horizontal rows in the connection box of the motor. The phases are then connected on the leads of the other horizontal row:

Star connection
A star connection is accomplished simply by bridging one horizontal row in the connection box also as you can see is this photo from the connection box of a motor connected in Star.

Suppose now that the motor is connected in Delta. In Delta connection, the end of each coil is connected with the start of another coil. The 3 coils are then connected in a circle, creating thus 3 nodes. The 3 phases are then applied on these nodes. A Delta connection is easily accomplished by bridging the 3 columns in the connection box vertically:

Delta connection
A Delta connection is easily accomplished simply by bridging the 3 columns in the connection box vertically, also as you can see in this photo from the connection box of a motor connected in Delta.

How to check the Windings of a 3-Phase AC motor

There are several different AC motor types, each one with different operating and mechanical characteristics. The most common type though is the -so called- squirrel cage rotor. It is called squirrel-cage, because it's rotor looks like the exercising wheel found in squirrel or hamster cages.

A typical 3-phase squirrel-cage motor has six connection leads in the electrical connection box for the three coils. If someone works with AC 3-phase motors, then it is important to know how to connect these motors in Star and Delta connection, and how to detect an electrical problem. There are basically 4 problems that the motor windings can suffer from:

  • Broken coil (infinite coil resistance)
  • Short-circuited coil (less than normal or zero coil resistance)
  • Leaking coil to ground (current leaking from one coil to ground/neutral)
  • Two or more coils short-circuited with each other (current leaking from one coil to another coil)

All of the above problems can be detected with a simple Ohm-meter. First of all, you need to understand how the coils are connected with the six motor leads that exist in the electrical connection box.

For example say it is a motor in Star wiring

As you can see, there are indeed six leads arranged in two rows. Since each coil has 2 endings, it is easy to understand that these six leads correspond can be separated in three pairs, and each pair is connected to one coil. It seems logical to separate these 3 pairs in a vertical pattern, but that is not correct. Instead, the pairs are in cross-pattern like the illustration far left.

You may now wonder, why the coils are connected in cross-pattern and not vertically... The answer is this: To easily bridge a permanent connection. A permanent connection is when the motor is connected in Star or Delta, and this connection cannot be changed. This is usually done if the motor is small (smaller than 3.5 KW) or the motor is driven by an inverter or some kind of electronic driver. A permanent connection is usually accomplished with 2 or 3 metallic bridges.