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ABB LV Motors |
Low voltage motors for hazardous areas 3
Exceeding international efficiency
requirements
Motors operating in potentially explosive atmospheres are
included in the scope of IEC (International Electrotechnical
Commission) standard 60034-30, which specifies efficiency
classes. These motors can therefore be labeled with the IE
(International Efficiency) class code. Hazardous area motors
are also covered by many of the MEPS (Minimum Energy
Performance Standard) schemes around the world, including
those in Australia, Brazil, Canada, China, Korea, and
the USA.
In some markets, however, there are no mandatory
efficiency requirements for hazardous area motors. In the EU,
for example, these motors are excluded from the EU MEPS
scheme. As a result there are presently no requirements for
manufacturers to improve the efficiency of hazardous area
motors supplied to these markets, with the result that many
of the motors available in such markets are less efficient.
As a global player committed to supplying safe, reliable
and efficient motors, ABB designs and labels its hazardous
area motors to comply with the international IEC standards.
In addition, motors are naturally supplied to conform to local
MEPS requirements where applicable. The table below shows
how the IEC’s International Efficiency classes compare with
MEPS schemes.
ABB hazardous area motors meet – and comfortably
exceed – the requirements for the IEC’s IE2 and IE3 efficiency
classes. ABB supplies IE2 (high efficiency) hazardous area
motors as standard, available direct from stock; it also
supplies an extensive range of IE3 (premium efficiency)
hazardous area motors.
IEC/EN 60034-30
IE3
Premium efficiency
IE2
High efficiency
(comp. to EFF1)
IE1
Standard efficiency
(comp. to EFF2)
EU MEPS
IE3
Premium efficiency
IE2
High efficiency
Hazardous area motors
included in MEPS
-
•
•
•
•
•
-
•
•
•
= included
US EPAct
Idential to NEMA
Premium efficiency
Idential to NEMA
Energy efficiency/EPACT
Below standard
efficiency
Other, similar local
regulations
Switzerland 2011
Mexico
Australia
New Zealand
Brazil
China 2011
Switzerland 2010
China
Brazil
IEC International Efficiency classes and MEPS schemes
IEC/TS 60034-31 proposes IE4 levels for asynchronous and synchronous motors.
IEC standard (IEC 60034-2-1) defines how efficiency is to be measured.
High quality motors from ABB easily exceed
International Efficiency class requirements
ABB supplies IE2 motors as standard, and also offers an extensive
range of IE3 motors.
96
94
92
90
88
86
84
82
11
15
18.5
22
30
37
45
55
75
90
110
132
160
200
250
315
355
0.75
1.1
1.5
2.2
3
4
5.5
7.5
–
M4
–
M3
–
IE3 limit
–
IE2 limit