SUPPLEMENT TOE ELECTRIC   
 المتقدمة  والتكنولوجيا  الصناعة  وزارة   
Ministry  of Industry  and  Advanced  Technology  
  
 
 
   
UAE STANDARD  
الإماراتية القياسية  المواصفة   
 
UAE.S  xxxx/  2022  
 
 
 الكهربائية  للمحركات  الطاقة  اسْڈلاك  كفاءة  
 
Energy ‑Efficient  for Electric  Motors  
 
 
 
   
 
 
ICS:  29.160.01  
  
UAE.S  XXXX/  2022                                                                                                                                   UAE  STANDARDS  
 
   
    
  
 
  
    
  
  
 الكهربائية  للمحركات  الطاقة  اسْڈلاك  كفاءة   
  
Energy ‑Efficient  for Electric  Motors  
  
  
  
  
    
  
  
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فنية لائحة   : الإصدار  صفة  3 
 
   
Foreword   
The Ministry of Industry and Advanced Technology is the authority responsible for standardization activities, 
according to Federal Decree Law No. 20 of 2020 regarding specifications and metrology. Among its tasks is 
the preparation of UAE standards and technical re gulations by means of te chnical committees and 
specialized work teams. 
The Ministry, through the Technical Committee for Elec tricity, has prepared the UAE technical regulation 
"UAE.S XXX:2022 Energy Efficien cy for Electric Motors". 
This standard has b een approved, as a  technical regulation, by UAE Ca binet Resolution No. ( ) dated   / ##
.####  / ## 
  
  
  
  
 
Energy ‑Efficient  for Electric  Motors  
 
Article  1. Scope  
 
1.1 Scope  
 
This regulation applies to all three Phase single-speed electric induction motors that are manufactured in or imported into 
the country, and are sold either as standalone equipment or as a component of a motor-driven unit, with 2, 4, 6 and 8 poles, 
rated output power from 0.75 kW to 375 kW (i.e. 1 HP to 500 HP) with rated voltage of 50 Volts and above, up to and including 1,000 Volts, with a rated frequency of 50 Hz. Which are designed to operate in any ambient temperature within the range of -
30°C to + 60 °C.; and at any altitude up to 4000 m above mean sea level. 
Motors which are rated for both fixed speed operation  and variable speed operation, are within the scope of this regulation, but 
shall bear the IE efficiency class f or fixed speed operation only. The regulation applies to induction motors with sq uirrel-cage rotors as well as with wound- rotors. 
 
1.2 Exclusions  
 
This regulation does not apply to 
• Motors other than induction motors; 
• Induction motors that are mechanically or electrically integr ated into the motor-driven unit to the extent that these are 
incapable of independent operation even if a temporary end shield or a drive end bearing is fitted; 
• Motors rated for temperatures outside the range specified in  scope as these are of special construction; 
• Motors specifically designed to operate wholly immersed in a liquid; 
• Multi-speed motors, torque motors; 
• Totally enclosed non-ventilated (TENV) motors IC410; Motors with cooling methods other than IC0Ax, IC1Ax, 
IC2Ax, IC3Ax or IC4Ax (see IEC 60034-6); 
• Motors intended for use in explosive atmospheres and certified as “Ex eb” increased safety motors, as defined in 
UAE.S IEC EN 60079-7:2015. 
 
1.3 reference  Standards  
 
- IEC 60034-2-1 Ed. 2.0 Rotating electrical machines – Part 2- 1:  Standard methods for determining losses and efficiency. 
- IEC 60034-30-1 Ed. 1.0 Rotating electrical machines – Part 30-1 : Efficiency classes of line operated AC motors (IE code). 
 
The testing requirements specified in above can be me t by using the following alternative test method:  
 
IEEE 112:2017 : Method B (Test Procedure for Polyphase Induction Motors and Generators)  
 
  
  
 
Article  2. Terms  and  Definitions  
 
a)  ‘Efficiency’   means  the  ratio  of  output  power  to  input  power  expressed  as  a percentage. 
b) ‘Full  load’  means the load that causes a motor to operate at its rating. 
c) ‘Full  load  value’  means a quantity value for a motor operating at full power, torque, current or speed. 
d)  ‘IE Class’  means the ‘International Efficiency’ classification of motors and other components of a motor system 
defined by the respective IEC Standards. 
e) ‘Losses’  means the difference between the input power and the ou tput power, comprising of various components viz. 
core losses, stator and rotor losses, friction  and windage losses and stray load losses. 
f)  ‘Motor-Driven  Unit’  includes the aggregate of the motor, elements for transmitting its motion such as a coupling, 
belt, gear, clutch, brake etc., the driven equipment such as a pump, fan, compressor, conveyor etc., and a soft-starter 
or electronic speed control device. 
g)  ‘Power  factor’  means the ratio of ‘active’ or ‘real’ power (i.e. useful power) to ‘apparent’ power drawn by a motor 
from the mains. 
h)  ‘Rated  output’  means the value of the output included in the rating. For a motor it means the mechanical power 
available at the motor shaft under rated operating conditions. It is expressed in kilo-Watts (kW) or horsepower (hp) . 
i)  ‘Rated  value’  means a quantity value assigned, generally by a ma nufacturer, for a specified operating condition of a 
motor.  
j) ‘Single-speed  motor’  means a motor rated for 50 Hz and/or 60 Hz on-line operation. 
k) ‘Tolerance’  means the permitted deviation between the declar ed value of a quantity and the measured value.  
 
Article  3. Requirements  
 
All electric induction motors in the scope of this regulation, that are manufactured in, or imported into the country, shall me et 
the minimum energy efficiency requirements, the product info rmation requirements, and the compliance criteria in this 
Article. 
 
3.1 Energy  Efficiency  Requirements  
 
The nominal energy efficiency of a motor included in the scope of this regulation must not be less than the value specified in 
Table 1, at full load  and  under  rated  operating  conditions .  
For motors with a rated output power other than the values sp ecified in Table 1, but within the range of 0.75 kW-375 kW, the 
efficiency value determined in accordance with the interpolat ion method specified in clause 5.4.5 of UAE.S IEC 60034-30-1 
shall apply . 
 
 
 
Table  1 : Nominal  energy  efficiency  requirements  for 50 Hz motors  (IE3)  
 
  
 Rated  output  power  (kW)  
 Energy  Efficiency  (%)  
No of poles  / Synchronous  speed  
 2-pole  
3000  RPM  4-pole  
1500  RPM  6-pole  
1000  RPM  8-pole  
750  RPM  
0.12  60.8 64.8 57.7 50.7
0.18  65.9 69.9 63.9 58.7
0.20  67.2 71.1 65.4 60.6
0.25  69.7 73.5 68.6 64.1
0.37 73.8 77.3 73.5 69.3
0.40 74.6 78.0 74.4 70.1
0.55 77.8 80.8 77.2 73.0
0.75  
1.1 
1.5 
2.2 
3 
4 
5.5 
7.5 
11 
15 
18.5  
22 
30 
37 
45 
55 
75 
90 
110  
132  
160  
200 up to 375  
375 up to 1000  80.7 
82.7 
84.2 
85.9 87.1 88.1 
89.2 
90.1 91.2 
91.9 
92.4 92.7 93.3 
93.7 
94.0 94.3 
94.7 
95.0 95.2 95.4 
95.6 
95.8 95.8 82.5 
84.1 
85.3 
86.7 87.7 88.6 
89.6 
90.4 91.4 
92.1 
92.6 93.0 93.6 
93.9 
94.2 94.6 
95.0 
95.2 95.4 95.6 
95.8 
96.0 96.0 78.9 
81.0 
82.5 
84.3 85.6 86.8 
88.0 
89.1 90.3 
91.2 
91.7 92.2 92.9 
93.3 
93.7 94.1 
94.6 
94.9 95.1 95.4 
95.6 
95.8 95.8 75.0 
77.7 79.7 81.9 
83.5 
84.8 86.2 
87.3 
88.6 89.6 90.1 
90.6 
91.3 91.8 
92.2 
92.5 93.1 93.4 
93.7 
94.0 94.3 
94.6 
94.6 
 
 
   
 3.2 Product  Information  Requirements  
 
Manufacturers shall provide the following info rmation for the motors covered by this regulation. Either on one or more rating 
plates, in the technical documentation and free access websites.  
 
- Year of manufacture  
- Efficiency class (IE code) and 
- Nominal efficiency ( η) at 100%, 75 % and 50 % rated load and voltage (U N);  
- Rated efficiency class.  
- Manufacturer's name 
- Number of phases, i.e. 3 
- Degree of protection (IP code),  
- Thermal class and the limit of temperature rise. 
- Rated power output (kW). 
- Rated voltage(s) or range of rated voltage (V).  
- Rated frequency (Hz). 
- Rated current(s) or range of rated current. 
- Rated speed(s) or range of rated speed. 
- Rated power factor(s). 
- For wound-rotor induction machines, the rated open-c ircuit voltage between slip- rings and the rated 
slip-ring current. 
- Maximum ambient air temperature, if other than 40 °C 
- Minimum ambient air temperature if other than -15 °C 
- The altitude for which the motor is designed (if exceeding 1 000 m above sea-level) 
- The approximate total mass of the motor, if exceeding 30 kg.   
- For motors suitable for operation in only one direction of  rotation, the direction of rotation indicated by an 
arrow. This arrow need not be on the rating  plate, but it shall be easily visible. 
- The connecting instructions by means of a diagram or text located near the terminals. 
 
3.3 Compliance  criteria   
3.3.1     Certification  and  Registration  
- Importers and manufacturers of motors covered by this regulation must be register their products with the MOIAT 
and get the conformity certificate (ECAS) through the su bmission of the full product information and required 
documents together with test reports. 
- The test reports should be according the te st standards mentioned in Article 2 above. 
- Test reports should be from test laboratories that have  been accredited according IS O 17025. These may be either 
manufacturer’s in-house laboratories or third-party laboratories. 
3.3.2  Market  Surveillance  
- Importers or manufacturers shall provide the informatio n and technical documentation necessary for the market 
surveillance authority to assess conformity and verify compliance and any additional optional claims. 
- In order to verify the compliance of the claimed energy e fficiency of a motor design covered by this regulation,   
  -market surveillance authority shall test one single motor to be picked directly from the market, according to 
the test method prescribed above. 
 
 The motor consider as comply if the measured full-load efficiency of the motor at rated voltage and rated 
frequency is not less than the nominal efficiency, after allowing for the tolerance on the total losses  according 
to IEC 60034-1    . 
 
 If the selected motor fails this test, the market surveilla nce authority shall randomly test three additional motors 
of the same design. The motor design shall be considered to comply with this regula tion, if the average of the 
measured full-load efficiency of the three test motors at rated voltage and rated frequency is not less than the nominal efficiency, after allowing for the tolerance on the total losses according to IEC 60034-1. 
 If this result is not achieved, the motor design shall be considered to be not in compliance with this regulation. If 
a decision of non-compliance is taken, the market surveillance authority may take legal and enforcement 
actions against the manufacturer and / or importer, as well as, stope sale of the same model and recall it from the market. 
 
The calculation of average efficiency is only relevant to the permit for verification by the competent authorities and may not 
be used by the manufacturer or the importer as a permit to determine the values in technical documentation or in the 
conformity.