1. Standards
Standard
"A technical specification or other document available to the public, drawn up with the cooperation and consensus or general approval of all interests affected by it based on the consolitated results of science, technology and experience, aimed at the promotion of optimum community benefits and approved by a body recognized on the national, regional or international level. In some languages the word "standard" is often used with another meaning than in this definition, and in such cases, it may refer to a technical specification which does not satisfy all the conditions given in the definition, for example: "company standard". (
The most common standards in motor business are IEC, EN and NEMA. ABB Motors manufactures according to all of these three standards.
Directive
A directive is an EC document issued by the European Community, the aim of a directive is to harmonise national provisions to ensure within each State:
- Safety aspects
- Environment
A directive is published in the Official Journal of European Communities (OJEC). Products are stamped "CE" as a proof of conformity to the following directives:
- Low Voltage Directive 73/23/EEC (amended by 93/68/EEC)
- EMC Directive 89/336/EEC (amended by 92/31/EEC)
(Refer to EC Declaration of Conformity delivered with each motor)

2. Standards International standards: Regional standards:
IEC (International Electrotechnical Commission) IEC 34-XXX
Regional standards:
CENELEC (European Committee for Electrotechnical Standardization) EN XXX
ANSI (American National Standard Institute)
IEEE
NEMA (National Electrical Manufacturers Association
National standards:
The International Electrotechnical Commission (IEC) is the international standards and conformity assessment body for all fields of electrotechnology. It was created in 1906 and the commission's head office is situated in Geneva, Switzerland. The membership consists of more than 50 participating countries, including all the world's major trading nations and a growing number of industrialising countries. (
CENELEC is the European Committee for Electrotechnical Standardisation. It was set up in 1973 as a non-profit-making organisation under Belgian Law. It has been officially recognised as the European Standards Organisation in its field by the European Commission in Directive 83/189/EEC. Its members have been working together in the interests of European harmonisation since the late fifties, developing alongside the European Economic Community. CENELEC works with 35,000 technical experts from 19 European countries to publish standards for the European market. (
For more than 70 years, the National Electrical Manufacturers Association has been developing standards for the electrical manufacturing industry and is today one of the leading standards development organisations in the world. As such, it contributes to an orderly marketplace and helps ensure the public safety. NEMA attempts to promote the competitiveness of its member companies by providing a forum for: the development of technical standards that are in the best interests of the industry and the users of its products; the establishment and advocacy of industry policies on legislative and regulatory matters that might affect the industry and those it serves; and the collection, analysis, and dissemination of industry data NEMA publishes over 200 standards and offers them for sale, along with certain standards originally developed by the American National Standards Institute (ANSI) and the International Electrotechnical Commission. The association promotes safety in the manufacture and use of electrical products, provides information about NEMA to the media and the public, and represents industry interests in new and developing technologies. (
VDE Germany
SFS Finland
SEN Sweden
DIN Germany
BS Great Britain
05/04/2006

3. Standards IEC defines: Electrical:
ABB strongly supports the drive to harmonise European standards and actively contributes to various working groups within both IEC and CENELEC.
IEC defines:
Electrical:
IEC : Rating and performance
IEC : Methods for determining losses and efficiency of rotating electrical machinery from tests
IEC : Terminal markings and direction of rotation of rotating machines
IEC : Starting performance of single-speed three-phase cage induction motors for voltages up to and including 660V
Concerning non-hazardous area motors EN standards basically follow IEC standards. The biggest differences can be found with parts for hazardous area motors.

4. Standards Mechanical:
IEC : Dimensions and output series for rotating electrical machines - Part1: Frame numbers 56 to 400 and flange numbers 55 to 1080
IEC : Dimensions and output series for rotating electrical machines - Part2: Frame numbers 355 to 1000 and flange numbers 1180 to 2360
IEC : Degrees of protection provided by the integral design of rotating electrical machines (IP code) - Classifications
IEC : Methods of cooling
IEC : Classification of types of construction, mounting arrangements and terminal box position (IM code)
IEC : Noise limits
IEC : Mechanical vibration of certain machines with shaft heights 56mm and higher - Measurement, evaluation and limits of vibration

5. Insulation Classes acc. IEC 85

6. Permissible temperature rise of marine motors
Classification Ambient Permissible temperature societies and rise K for stator windings standards temperature Insulation class °C B F
IEC Publ
IEC
ABS BV
CCS CR
DNV GL KR LR NK
RINA RS

7. Nominal tolerances IEC 60034-1
Electric tolerances acc. to IEC
Type
Tolerance
Note
Voltage deviation 5%
Continuous
(+10K)
10%
Short time
Power factor
-1/6 of (1-cos)
Min.0,02/Max.0,07 2
Efficiency
-15% of (1- ) P
< 50 kW 2
-10% of (1- ) P
>
50 kW
Speed
20% of guaranteed slip
Overspeed
120% for 2 min.
Start torque -
15 to + 25%
Nominal tolerances given by IEC are large and easily met. With current manufacturing technology variation of quality is smaller than that allowed by IEC. Some of our competitors may use this and ride with IEC tolerances to gain benefit or hide their weaknesses. This line of quoting is not encouraged by ABB but something worth keeping in mind.
Pull-up torque
-15 %
Maximum torque
-10%
Min. 160% of Mn
Locked rotor current
+20%

8. Efficiency classes
Above you can see three efficiency classes. All efficiency levels are based on the IEC and IEC standards.
IEC is an indirect method assuming the additional losses to be 0,5%, which is lower than real losses for smaller motors.

9. ABB Process performance motors 400 V 50 Hz - EU motor efficiency levels
2-pole
ABB is one of only a handful of leading motor manufacturers in Europe, to have a motor range to meet or exceed the minimum efficiencies stated in the highest level of the EU agreement of LV motors.
These efficiency levels apply to 2- and 4-pole, three phase squirrel cage induction motors, rated for 400 V 50 Hz, with S1 duty classes with the output 1.1 to 90 kW, which account for the largest volume on the market.
Process Performance Motors

10. ABB Process performance motors 400 V 50 Hz - EU motor efficiency levels
4-pole
ABB is one of only a handful of leading motor manufacturers in Europe, to have a motor range to meet or exceed the minimum efficiencies stated in the highest level of the EU agreement of LV motors.
These efficiency levels apply to 2- and 4-pole, three phase squirrel cage induction motors, rated for 400 V 50 Hz, with S1 duty classes with the output 1.1 to 90 kW, which account for the largest volume on the market.
Process Performance Motors

11. Index of Protection (IP) Classes IEC 60034-5
First number - Protection against solid objects
Second number - Protection against liquids IP IP
Protection class
Protection class
No protection
No protection
Protection against solid objects of over 50 mm (e.g. accidental
hand contact)
Protection against vertically dripping water (condensation) 1 1 2 2
Protection against water dripping up to15o from the vertical
Protection against solid objects of over 12 mm (e.g. finger)
Protection against solid objects of over 2,5 mm (e.g. tools, wire)
Protection against spraying water at up to 60o from the vertical 3 3 4
Protection against solid objects of over 1 mm (e.g. thin wire) 4
Protection against water splashes from all directions 5
Protection against dust (no deposits of harmful material) 5
Protection against jets of water from all directions
. .
Sometimes for instance IP557 (third digit). Third digit means shock test in Joules (ex. 7= 7 Joules)
IP W55 (W= “Weather protected” -> Customer information to the manufacturer required)
Total protection against dust. Does not involve rotating machines.
Protection against water from heavy seas or powerful jets. 6 . 6
Protection against the effects of
immersion. 7 8
Protection against continuous submersion.

12. International Standards: Method of Cooling (IC code, short one normally used) IEC 60034-6
Long designation IC
Short designation IC
CODE LETTERS
CIRCUIT ARRANGEMENT
PRIMARY COOLANT
METHOD OF MOVEMENT OF
SECONDARY COOLANT 4 A 1
IC 410 Frame surface cooled, free convection (roller table motor?)
IC 411 Frame surface cooled, self-circulation (normal fan)
IC 416 Frame surface cooled, machine-mounted independent component (separate motor cooling, variant codes 183, 422)
IC 31W Inlet and outlet pipe or duct circulated, separate and independent component or coolant system pressure (water cooled)
IC 418 Frame surface cooled, relative displacement
(fan application motor MX)
IC = International Cooling
A = air as coolant
W = water as coolant
© BU´s LV Motors, Machines-Training - 12
Standards

13. International Standards; IM Mounting Arrangements IEC 60034- 7
Designation for
International mounting
Type of construction, foot-mounted
motor with two bearing end shields
Mounting arrangement, horizontal
mounting with feet downwards etc.
External shaft extension, one
cylindrical shaft extension etc. IM
Example of designations acc. to Code II
IEC 34-7 specifies two ways of stating how a motor is mounted.
Code I covers only motors with bearing end shields and one shaft extension.
Code II is a general code.
© BU´s LV Motors, Machines-Training - 13
Standards

14. International Standards; IM Mounting Arrangements IEC 60034-7
Examples of common mounting arrangements
Code I IM B3 IM V5 IM V6 IM B6 IM B7 IM B8
Code II IM 1001 IM 1011 IM 1031 IM 1051 IM 1061 IM 1071
Foot-motor:
Code I IM B5 IM V1 IM V3 *) *) *)
Code II IM 3001 IM 3011 IM 3031 IM 3051 IM 3061 IM 3071
Flange-mounted motor,
large flange with
clearance fixing holes.
Code I IM B14 IM V18 IM V19 *) *) *)
Code II IM 3601 IM 3611 IM 3631 IM 3651 IM 3661 IM 3671
small flange with
tapped fixing holes.
© BU´s LV Motors, Machines-Training - 14
Standards

15. Motor Dimensions and Powers IEC 60034-7
Acc. to Cenelec Harmonization Document (HD 231)

16. Motor Dimensions & Powers
Acc. to Cenelec Harmonization Document (HD 231)

17. Markings and Direction IEC 60034-8
Delta () Connection
UL = phase-to-phase voltage L1 U1 U2 L2 V1 V2 L3 W1 W2 { UL
L 1
L 2
L 3

18. Markings and Direction IEC 60034-8
Star (Y) Connection L1 L2 L3
UL = phase-to-phase voltage Uph = phase or star voltage
Uph = UL W2 U2 V2 3 L1 U1 U2 W1 V2 W2 V1 L3 L2 {
Uph UL U1 V1 W1 W2 U2 V2
L 1 { UL
L 2 U1 V1 W1
L 3 L1 L2 L3

19. Noise IEC 60034-9 ABB’s motors have a low noise level.
Average test values are presented in respective product catalogues.
Guaranteed noise data can be supplied on request.
Noise level is given as mean sound pressure level at full load and 1 m distance

20. Starting IEC

21. Vibration IEC 60034-14:1996 Maximum vibration velocity in mm/s,
for the shaft height mm
Vibration Speed
grade r/min mm/s mm/s mm/s
N (Normal) 600 to
R (Reduced) 600 to
>1800 to
S (Special) 600 to
>1800 to